filer/examples/IndexedDBViewer.js

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JavaScript
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2013-05-30 18:57:33 +00:00
/// <reference path="jquery-1.7.2.js" />
/// <reference path="Linq2IndexedDB.js" />
$(function () {
function initializeViewer() {
var placeholder = $("#indexedDBViewer");
var dbName = placeholder.attr("data-dbName");
createHeader('indexedDBViewerHeader', placeholder);
var navigation = retrieveOrCreateElement('indexedDBViewerNavigation', 'div', placeholder);
var menu = retrieveOrCreateElement('indexedDBViewerMenu', 'ul', navigation);
var menuOverview = expandableListItem('indexedDBViewerMenuOverview', dbName, menu, viewDb, { dbName: dbName, objectStore: null, index: null });
navigation.addClass('nav');
linq2indexedDB.prototype.core.db(dbName).then(function () {
var connection = arguments[0][0];
linq2indexedDB.prototype.core.dbStructureChanged.addListener(linq2indexedDB.prototype.core.databaseEvents.databaseBlocked, function () {
connection.close();
});
var menuObjectStores = retrieveOrCreateElement('indexedDBViewerMenuObjectStores', 'ul', menuOverview);
for (var i = 0; i < connection.objectStoreNames.length; i++) {
var storeName = connection.objectStoreNames[i];
var menuObjectStore = expandableListItem('indexedDBViewerMenuObjectStore' + storeName, storeName, menuObjectStores, viewDb, { dbName: dbName, objectStore: storeName, index: null });
linq2indexedDB.prototype.core.objectStore(linq2indexedDB.prototype.core.transaction(connection, storeName, linq2indexedDB.prototype.core.transactionTypes.READ_ONLY, false), storeName).then(function (args) {
var store = args[1];
var menuObjectStore = retrieveOrCreateElement('indexedDBViewerMenuObjectStore' + storeName, 'li', menuObjectStores);
var menuIndexes = retrieveOrCreateElement('indexedDBViewerMenuObjectStore' + store.name + 'Indexes', 'ul', menuObjectStore);
for (var j = 0; j < store.indexNames.length; j++) {
var indexName = store.indexNames[i];
expandableListItem('indexedDBViewerMenuObjectStore' + store.name + 'Index' + indexName, indexName, menuIndexes, viewDb, { dbName: dbName, objectStore: store.name, index: indexName });
}
});
}
}, null, function (args) {
if (args[1].type == "upgradeneeded") {
args[0].abort();
}
});
}
function viewDb(e) {
var dbName = e.data.dbName;
var objectStore = e.data.objectStore;
var index = e.data.index;
var content = retrieveOrCreateElement('indexedDBViewerContent', 'div', $("#indexedDBViewer"));
content.empty();
if (objectStore != null) {
if (index != null) {
retrieveOrCreateElement('indexedDBViewerContentGeneral', 'h1', content).text(index);
}
else {
retrieveOrCreateElement('indexedDBViewerContentGeneral', 'h1', content).text(objectStore);
}
}
linq2indexedDB.prototype.core.db(dbName).then(function () {
var connection = arguments[0][0];
if (objectStore == null) {
retrieveOrCreateElement('indexedDBViewerContentGeneral', 'h1', content).text("General");
retrieveOrCreateElement('indexedDBViewerContentGeneralName', 'span', content).text("Name: " + connection.name);
content.append("<br/>");
retrieveOrCreateElement('indexedDBViewerContentGeneralVersion', 'span', content).text("Version: " + connection.version);
content.append("<br/>");
content.append("<br/>");
retrieveOrCreateElement('indexedDBViewerContentObjectStores', 'h1', content).text("Object stores");
retrieveOrCreateElement('indexedDBViewerContentObjectStoresTable', 'table', content);
content.append("<br/>");
content.append("<br/>");
retrieveOrCreateElement('indexedDBViewerContentIndex', 'h1', content).text("Indexes");
retrieveOrCreateElement('indexedDBViewerContentIndexTable', 'table', content);
content.append("<br/>");
}
linq2indexedDB.prototype.core.dbStructureChanged.addListener(linq2indexedDB.prototype.core.databaseEvents.databaseBlocked, function () {
connection.close();
});
for (var i = 0; i < connection.objectStoreNames.length; i++) {
var storeName = connection.objectStoreNames[i];
linq2indexedDB.prototype.core.objectStore(linq2indexedDB.prototype.core.transaction(connection, storeName, linq2indexedDB.prototype.core.transactionTypes.READ_ONLY, false), storeName).then(function (args) {
var store = args[1];
if (objectStore == null) {
viewObjectStoreDefinition(store.name, store.keyPath, store.autoIncrement, content);
}
else {
if (index == null && store.name == objectStore) {
linq2indexedDB.prototype.core.cursor(store).then(function () {
}, function () {
}, function (args1) {
var keyValue = args1[0];
viewObjectStoreData(keyValue.key, keyValue.data, content);
});
}
}
for (var j = 0; j < store.indexNames.length; j++) {
linq2indexedDB.prototype.core.index(store, store.indexNames[j], false).then(function (args1) {
var ix = args1[1];
if (objectStore == null) {
viewIndexDefinition(ix.name, ix.keyPath, ix.objectStore.name, ix.multiEntry || ix.multiRow, ix.unique, content);
}
else {
if (index != null && ix.name == index) {
linq2indexedDB.prototype.core.cursor(ix).then(function () {
var x = 1;
}, function () {
}, function (args1) {
var keyValue = args1[0];
viewIndexData(args1[1].key, args1[1].primaryKey, keyValue.data, content);
});
}
}
});
}
});
}
});
}
function viewObjectStoreDefinition(name, keyPath, autoIncrement, parent) {
var table = retrieveOrCreateElement('indexedDBViewerContentObjectStoresTable', 'table', parent);
var headerRow = retrieveOrCreateElement('indexedDBViewerContentObjectStoresRowHeader', 'tr', table);
retrieveOrCreateElement('indexedDBViewerContentObjectStoresRowHeaderName', 'th', headerRow).text("name");
retrieveOrCreateElement('indexedDBViewerContentObjectStoresRowHeaderKeyPath', 'th', headerRow).text("keyPath");
retrieveOrCreateElement('indexedDBViewerContentObjectStoresRowHeaderAutoIncrement', 'th', headerRow).text("autoIncrement");
var dataRow = retrieveOrCreateElement('indexedDBViewerContentObjectStoresRow' + name, 'tr', table);
retrieveOrCreateElement('indexedDBViewerContentObjectStoresRow' + name + 'Name', 'td', dataRow).text(name);
retrieveOrCreateElement('indexedDBViewerContentObjectStoresRow' + name + 'KeyPath', 'td', dataRow).text(keyPath);
retrieveOrCreateElement('indexedDBViewerContentObjectStoresRow' + name + 'AutoIncrement', 'td', dataRow).text(autoIncrement);
}
function viewIndexDefinition(name, keyPath, objectStore, multiEntry, unique, parent) {
var table = retrieveOrCreateElement('indexedDBViewerContentIndexTable', 'table', parent);
var headerRow = retrieveOrCreateElement('indexedDBViewerContentIndexRowHeader', 'tr', table);
retrieveOrCreateElement('indexedDBViewerContentIndexRowHeaderName', 'th', headerRow).text("name");
retrieveOrCreateElement('indexedDBViewerContentIndexRowHeaderKeyPath', 'th', headerRow).text("keyPath");
retrieveOrCreateElement('indexedDBViewerContentIndexRowHeaderObjectStore', 'th', headerRow).text("objectStore");
retrieveOrCreateElement('indexedDBViewerContentIndexRowHeaderMultiEntry', 'th', headerRow).text("multiEntry");
retrieveOrCreateElement('indexedDBViewerContentIndexRowHeaderUnique', 'th', headerRow).text("unique");
var dataRow = retrieveOrCreateElement('indexedDBViewerContentIndexRow' + name, 'tr', table);
retrieveOrCreateElement('indexedDBViewerContentIndexRow' + name + 'Name', 'td', dataRow).text(name);
retrieveOrCreateElement('indexedDBViewerContentIndexRow' + name + 'KeyPath', 'td', dataRow).text(keyPath);
retrieveOrCreateElement('indexedDBViewerContentIndexRow' + name + 'ObjectStore', 'td', dataRow).text(objectStore);
retrieveOrCreateElement('indexedDBViewerContentIndexRow' + name + 'MultiEntry', 'td', dataRow).text(multiEntry);
retrieveOrCreateElement('indexedDBViewerContentIndexRow' + name + 'Unique', 'td', dataRow).text(unique);
}
function viewObjectStoreData(key, value, parent) {
var table = retrieveOrCreateElement('indexedDBViewerContentObjectStoreTable', 'table', parent);
var headerRow = retrieveOrCreateElement('indexedDBViewerContentObjectStoreRowHeader', 'tr', table);
retrieveOrCreateElement('indexedDBViewerContentObjectStoreRowHeaderKey', 'th', headerRow).text("key");
retrieveOrCreateElement('indexedDBViewerContentObjectStoreRowHeaderValue', 'th', headerRow).text("value");
var dataRow = retrieveOrCreateElement('indexedDBViewerContentObjectStoreRow' + key, 'tr', table);
viewData(key, retrieveOrCreateElement('indexedDBViewerContentObjectStoreRow' + key + 'Key', 'td', dataRow));
viewData(value, retrieveOrCreateElement('indexedDBViewerContentObjectStoreRow' + key + 'Value', 'td', dataRow));
}
function viewIndexData(key, primaryKey, value, parent) {
var table = retrieveOrCreateElement('indexedDBViewerContentIndexTable', 'table', parent);
var headerRow = retrieveOrCreateElement('indexedDBViewerContentIndexRowHeader', 'tr', table);
retrieveOrCreateElement('indexedDBViewerContentIndexRowHeaderKey', 'th', headerRow).text("key");
retrieveOrCreateElement('indexedDBViewerContentIndexRowHeaderPrimaryKey', 'th', headerRow).text("primary key");
retrieveOrCreateElement('indexedDBViewerContentIndexRowHeaderValue', 'th', headerRow).text("value");
var dataRow = retrieveOrCreateElement('indexedDBViewerContentIndexRow' + primaryKey, 'tr', table);
viewData(key, retrieveOrCreateElement('indexedDBViewerContentIndexRow' + primaryKey + 'Key', 'td', dataRow));
viewData(primaryKey, retrieveOrCreateElement('indexedDBViewerContentIndexRow' + primaryKey + 'PrimaryKey', 'td', dataRow));
viewData(value, retrieveOrCreateElement('indexedDBViewerContentIndexRow' + primaryKey + 'Value', 'td', dataRow));
}
function viewData(value, parent, propName) {
var text;
if (propName) {
text = propName + value;
}
else {
parent = retrieveOrCreateElement(null, 'ul', parent);
text = value;
}
if (typeof (value) === "object" && !(value instanceof Date)) {
var object = expandableListItem(null, text, parent);
var properties = retrieveOrCreateElement(null, 'ul', object);
for (prop in value) {
viewData(value[prop], properties, prop + ": ");
}
object.find('.expendable')[0].click();
}
else {
retrieveOrCreateElement(null, 'li', parent).text(text);
}
}
function expandableListItem(id, text, parent, clickEvent, clickEventData) {
var li = retrieveOrCreateElement(id, 'li', parent);
var col = retrieveOrCreateElement(null, 'span', li);
col.text(' - ');
col.data('status', 'open');
col.click(function () {
if ($(this).data('status') == 'closed') {
$($($(this)[0].parentElement).find('ul')[0]).show();
col.text(' - ');
col.data('status', 'open');
}
else if ($(this).data('status') == 'open') {
$($($(this)[0].parentElement).find('ul')[0]).hide();
col.text(' + ');
col.data('status', 'closed');
}
});
col.addClass("clickable");
col.addClass("expendable");
var item = retrieveOrCreateElement(null, 'span', li);
item.text(text);
if (clickEvent) {
item.click(clickEventData, clickEvent);
item.addClass("clickable");
}
return li;
}
function createHeader(id, parent) {
var header = retrieveOrCreateElement(id, 'div', parent);
var col = retrieveOrCreateElement(null, 'span', header);
col.text(' - ');
col.data('status', 'open');
col.addClass("clickable");
col.addClass("expendable");
col.click(function () {
if ($(this).data('status') == 'closed') {
$('#indexedDBViewer').height(170);
$('#indexedDBViewer').width('100%');
$('#indexedDBViewerNavigation').show();
$('#indexedDBViewerContent').show();
col.text(' - ');
col.data('status', 'open');
}
else if ($(this).data('status') == 'open') {
$('#indexedDBViewer').height($(this).outerHeight());
$('#indexedDBViewer').width($(this).outerWidth());
$('#indexedDBViewerNavigation').hide();
$('#indexedDBViewerContent').hide();
col.text(' + ');
col.data('status', 'closed');
}
});
}
function retrieveOrCreateElement(id, element, parent) {
var el;
if (id && id != null && id != '') {
if ($('#' + id).length > 0) {
el = $('#' + id);
} else {
el = $('<' + element + ' id="' + id + '"></' + element + '>');
parent.append(el);
}
}
else {
el = $('<' + element + '></' + element + '>');
parent.append(el);
}
return el;
}
initializeViewer();
// mousedown, mousemove, mouseup and mouseleave for resizing the placeholder
$(window).bind('mousedown', function (event) {
var location = $(window).height() - $("#indexedDBViewer").height();
if ((location - 2) <= event.pageY && event.pageY <= (location + 5)) {
$(window).bind('mousemove', resize);
}
});
$(window).bind('mouseup', function () {
$(window).unbind('mousemove', resize);
});
$(window).bind('mouseleave', function () {
$(window).unbind('mousemove', resize);
});
function resize(event) {
var pageHeight = $(window).height();
if (pageHeight - event.pageY >= 50) {
$("#indexedDBViewer").height(pageHeight - event.pageY);
var height = $("#indexedDBViewer").height() - $("#indexedDBViewerHeader").height();
$("#indexedDBViewerNavigation").height(height);
$("#indexedDBViewerContent").height(height);
}
}
});