1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
6 * This view displays options for exporting the captured data.
8 var ExportView = (function() {
11 // We inherit from DivView.
12 var superClass = DivView;
17 function ExportView() {
18 assertFirstConstructorCall(ExportView);
20 // Call superclass's constructor.
21 superClass.call(this, ExportView.MAIN_BOX_ID);
23 var privacyStrippingCheckbox = $(ExportView.PRIVACY_STRIPPING_CHECKBOX_ID);
24 privacyStrippingCheckbox.onclick =
25 this.onSetPrivacyStripping_.bind(this, privacyStrippingCheckbox);
27 this.saveFileButton_ = $(ExportView.SAVE_FILE_BUTTON_ID);
28 this.saveFileButton_.onclick = this.onSaveFile_.bind(this);
29 this.saveStatusText_ = $(ExportView.SAVE_STATUS_TEXT_ID);
31 this.userCommentsTextArea_ = $(ExportView.USER_COMMENTS_TEXT_AREA_ID);
33 // Track blob for previous log dump so it can be revoked when a new dump is
35 this.lastBlobURL_ = null;
37 // Cached copy of the last loaded log dump, for use when exporting.
38 this.loadedLogDump_ = null;
41 ExportView.TAB_ID = 'tab-handle-export';
42 ExportView.TAB_NAME = 'Export';
43 ExportView.TAB_HASH = '#export';
45 // IDs for special HTML elements in export_view.html
46 ExportView.MAIN_BOX_ID = 'export-view-tab-content';
47 ExportView.DOWNLOAD_ANCHOR_ID = 'export-view-download-anchor';
48 ExportView.SAVE_FILE_BUTTON_ID = 'export-view-save-log-file';
49 ExportView.SAVE_STATUS_TEXT_ID = 'export-view-save-status-text';
50 ExportView.PRIVACY_STRIPPING_CHECKBOX_ID =
51 'export-view-privacy-stripping-checkbox';
52 ExportView.USER_COMMENTS_TEXT_AREA_ID = 'export-view-user-comments';
53 ExportView.PRIVACY_WARNING_ID = 'export-view-privacy-warning';
55 cr.addSingletonGetter(ExportView);
57 ExportView.prototype = {
58 // Inherit the superclass's methods.
59 __proto__: superClass.prototype,
62 * Depending on the value of the checkbox, enables or disables stripping
63 * cookies and passwords from log dumps and displayed events.
65 onSetPrivacyStripping_: function(privacyStrippingCheckbox) {
66 SourceTracker.getInstance().setPrivacyStripping(
67 privacyStrippingCheckbox.checked);
71 * When loading a log dump, cache it for future export and continue showing
74 onLoadLogFinish: function(polledData, tabData, logDump) {
75 this.loadedLogDump_ = logDump;
76 this.setUserComments_(logDump.userComments);
81 * Sets the save to file status text, displayed below the save to file
82 * button, to |text|. Also enables or disables the save button based on the
83 * value of |isSaving|, which must be true if the save process is still
84 * ongoing, and false when the operation has stopped, regardless of success
87 setSaveFileStatus: function(text, isSaving) {
88 this.enableSaveFileButton_(!isSaving);
89 this.saveStatusText_.textContent = text;
92 enableSaveFileButton_: function(enabled) {
93 this.saveFileButton_.disabled = !enabled;
96 showPrivacyWarning: function() {
97 setNodeDisplay($(ExportView.PRIVACY_WARNING_ID), true);
98 $(ExportView.PRIVACY_STRIPPING_CHECKBOX_ID).checked = false;
99 $(ExportView.PRIVACY_STRIPPING_CHECKBOX_ID).disabled = true;
101 // Updating the checkbox doesn't actually disable privacy stripping, since
102 // the onclick function will not be called.
103 this.onSetPrivacyStripping_($(ExportView.PRIVACY_STRIPPING_CHECKBOX_ID));
107 * If not already busy saving a log dump, triggers asynchronous
108 * generation of log dump and starts waiting for it to complete.
110 onSaveFile_: function() {
111 if (this.saveFileButton_.disabled)
114 // Clean up previous blob, if any, to reduce resource usage.
115 if (this.lastBlobURL_) {
116 window.webkitURL.revokeObjectURL(this.lastBlobURL_);
117 this.lastBlobURL_ = null;
119 this.createLogDump_(this.onLogDumpCreated_.bind(this));
123 * Creates a log dump, and either synchronously or asynchronously calls
124 * |callback| if it succeeds. Separate from onSaveFile_ for unit tests.
126 createLogDump_: function(callback) {
127 // Get an explanation for the dump file (this is mandatory!)
128 var userComments = this.getNonEmptyUserComments_();
129 if (userComments == undefined) {
133 this.setSaveFileStatus('Preparing data...', true);
135 var privacyStripping = SourceTracker.getInstance().getPrivacyStripping();
137 // If we have a cached log dump, update it synchronously.
138 if (this.loadedLogDump_) {
139 var dumpText = log_util.createUpdatedLogDump(userComments,
146 // Otherwise, poll information from the browser before creating one.
147 log_util.createLogDumpAsync(userComments,
153 * Sets the user comments.
155 setUserComments_: function(userComments) {
156 this.userCommentsTextArea_.value = userComments;
160 * Fetches the user comments for this dump. If none were entered, warns the
161 * user and returns undefined. Otherwise returns the comments text.
163 getNonEmptyUserComments_: function() {
164 var value = this.userCommentsTextArea_.value;
166 // Reset the class name in case we had hilighted it earlier.
167 this.userCommentsTextArea_.className = '';
169 // We don't accept empty explanations. We don't care what is entered, as
170 // long as there is something (a single whitespace would work).
172 // Put a big obnoxious red border around the text area.
173 this.userCommentsTextArea_.className =
174 'export-view-explanation-warning';
175 alert('Please fill in the text field!');
176 this.userCommentsTextArea_.focus();
184 * Creates a blob url and starts downloading it.
186 onLogDumpCreated_: function(dumpText) {
187 var textBlob = new Blob([dumpText], {type: 'octet/stream'});
188 this.lastBlobURL_ = window.webkitURL.createObjectURL(textBlob);
190 // Update the anchor tag and simulate a click on it to start the
192 var downloadAnchor = $(ExportView.DOWNLOAD_ANCHOR_ID);
193 downloadAnchor.href = this.lastBlobURL_;
194 downloadAnchor.click();
196 this.setSaveFileStatus('Dump successful', false);