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Current File : /var/www/phpwinfx/js/ajax.js
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* This object handles ajax requests for pages. It also
* handles the reloading of the main menu and scripts.
*/
var AJAX = {
/**
* @var bool active Whether we are busy
*/
active: false,
/**
* @var object source The object whose event initialized the request
*/
source: null,
/**
* @var object xhr A reference to the ajax request that is currently running
*/
xhr: null,
/**
* @var object lockedTargets, list of locked targets
*/
lockedTargets: {},
/**
* @var function Callback to execute after a successful request
* Used by PMA_commonFunctions from common.js
*/
_callback: function () {},
/**
* @var bool _debug Makes noise in your Firebug console
*/
_debug: false,
/**
* @var object $msgbox A reference to a jQuery object that links to a message
* box that is generated by PMA_ajaxShowMessage()
*/
$msgbox: null,
/**
* Given the filename of a script, returns a hash to be
* used to refer to all the events registered for the file
*
* @param key string key The filename for which to get the event name
*
* @return int
*/
hash: function (key) {
/* http://burtleburtle.net/bob/hash/doobs.html#one */
key += '';
var len = key.length;
var hash = 0;
var i = 0;
for (; i < len; ++i) {
hash += key.charCodeAt(i);
hash += (hash << 10);
hash ^= (hash >> 6);
}
hash += (hash << 3);
hash ^= (hash >> 11);
hash += (hash << 15);
return Math.abs(hash);
},
/**
* Registers an onload event for a file
*
* @param file string file The filename for which to register the event
* @param func function func The function to execute when the page is ready
*
* @return self For chaining
*/
registerOnload: function (file, func) {
var eventName = 'onload_' + AJAX.hash(file);
$(document).on(eventName, func);
if (this._debug) {
console.log(
// no need to translate
'Registered event ' + eventName + ' for file ' + file
);
}
return this;
},
/**
* Registers a teardown event for a file. This is useful to execute functions
* that unbind events for page elements that are about to be removed.
*
* @param string file The filename for which to register the event
* @param function func The function to execute when
* the page is about to be torn down
*
* @return self For chaining
*/
registerTeardown: function (file, func) {
var eventName = 'teardown_' + AJAX.hash(file);
$(document).on(eventName, func);
if (this._debug) {
console.log(
// no need to translate
'Registered event ' + eventName + ' for file ' + file
);
}
return this;
},
/**
* Called when a page has finished loading, once for every
* file that registered to the onload event of that file.
*
* @param string file The filename for which to fire the event
*
* @return void
*/
fireOnload: function (file) {
var eventName = 'onload_' + AJAX.hash(file);
$(document).trigger(eventName);
if (this._debug) {
console.log(
// no need to translate
'Fired event ' + eventName + ' for file ' + file
);
}
},
/**
* Called just before a page is torn down, once for every
* file that registered to the teardown event of that file.
*
* @param string file The filename for which to fire the event
*
* @return void
*/
fireTeardown: function (file) {
var eventName = 'teardown_' + AJAX.hash(file);
$(document).triggerHandler(eventName);
if (this._debug) {
console.log(
// no need to translate
'Fired event ' + eventName + ' for file ' + file
);
}
},
/**
* function to handle lock page mechanism
*
* @param event the event object
*
* @return void
*/
lockPageHandler: function (event) {
var newHash = null;
var oldHash = null;
var lockId;
// CodeMirror lock
if (event.data.value === 3) {
newHash = event.data.content;
oldHash = true;
lockId = 'cm';
} else {
// Don't lock on enter.
if (0 === event.charCode) {
return;
}
lockId = $(this).data('lock-id');
if (typeof lockId === 'undefined') {
return;
}
/*
* @todo Fix Code mirror does not give correct full value (query)
* in textarea, it returns only the change in content.
*/
if (event.data.value === 1) {
newHash = AJAX.hash($(this).val());
} else {
newHash = AJAX.hash($(this).is(':checked'));
}
oldHash = $(this).data('val-hash');
}
// Set lock if old value !== new value
// otherwise release lock
if (oldHash !== newHash) {
AJAX.lockedTargets[lockId] = true;
} else {
delete AJAX.lockedTargets[lockId];
}
// Show lock icon if locked targets is not empty.
// otherwise remove lock icon
if (!jQuery.isEmptyObject(AJAX.lockedTargets)) {
$('#lock_page_icon').html(PMA_getImage('s_lock', PMA_messages.strLockToolTip).toString());
} else {
$('#lock_page_icon').html('');
}
},
/**
* resets the lock
*
* @return void
*/
resetLock: function () {
AJAX.lockedTargets = {};
$('#lock_page_icon').html('');
},
handleMenu: {
replace: function (content) {
$('#floating_menubar').html(content)
// Remove duplicate wrapper
// TODO: don't send it in the response
.children().first().remove();
$('#topmenu').menuResizer(PMA_mainMenuResizerCallback);
}
},
/**
* Event handler for clicks on links and form submissions
*
* @param object e Event data
*
* @return void
*/
requestHandler: function (event) {
// In some cases we don't want to handle the request here and either
// leave the browser deal with it natively (e.g: file download)
// or leave an existing ajax event handler present elsewhere deal with it
var href = $(this).attr('href');
if (typeof event !== 'undefined' && (event.shiftKey || event.ctrlKey)) {
return true;
} else if ($(this).attr('target')) {
return true;
} else if ($(this).hasClass('ajax') || $(this).hasClass('disableAjax')) {
// reset the lockedTargets object, as specified AJAX operation has finished
AJAX.resetLock();
return true;
} else if (href && href.match(/^#/)) {
return true;
} else if (href && href.match(/^mailto/)) {
return true;
} else if ($(this).hasClass('ui-datepicker-next') ||
$(this).hasClass('ui-datepicker-prev')
) {
return true;
}
if (typeof event !== 'undefined') {
event.preventDefault();
event.stopImmediatePropagation();
}
// triggers a confirm dialog if:
// the user has performed some operations on loaded page
// the user clicks on some link, (won't trigger for buttons)
// the click event is not triggered by script
if (typeof event !== 'undefined' && event.type === 'click' &&
event.isTrigger !== true &&
!jQuery.isEmptyObject(AJAX.lockedTargets) &&
confirm(PMA_messages.strConfirmNavigation) === false
) {
return false;
}
AJAX.resetLock();
var isLink = !! href || false;
var previousLinkAborted = false;
if (AJAX.active === true) {
// Cancel the old request if abortable, when the user requests
// something else. Otherwise silently bail out, as there is already
// a request well in progress.
if (AJAX.xhr) {
// In case of a link request, attempt aborting
AJAX.xhr.abort();
if (AJAX.xhr.status === 0 && AJAX.xhr.statusText === 'abort') {
// If aborted
AJAX.$msgbox = PMA_ajaxShowMessage(PMA_messages.strAbortedRequest);
AJAX.active = false;
AJAX.xhr = null;
previousLinkAborted = true;
} else {
// If can't abort
return false;
}
} else {
// In case submitting a form, don't attempt aborting
return false;
}
}
AJAX.source = $(this);
$('html, body').animate({ scrollTop: 0 }, 'fast');
var url = isLink ? href : $(this).attr('action');
var argsep = PMA_commonParams.get('arg_separator');
var params = 'ajax_request=true' + argsep + 'ajax_page_request=true';
var dataPost = AJAX.source.getPostData();
if (! isLink) {
params += argsep + $(this).serialize();
} else if (dataPost) {
params += argsep + dataPost;
isLink = false;
}
if (! (history && history.pushState)) {
// Add a list of menu hashes that we have in the cache to the request
params += PMA_MicroHistory.menus.getRequestParam();
}
if (AJAX._debug) {
console.log('Loading: ' + url); // no need to translate
}
if (isLink) {
AJAX.active = true;
AJAX.$msgbox = PMA_ajaxShowMessage();
// Save reference for the new link request
AJAX.xhr = $.get(url, params, AJAX.responseHandler);
if (history && history.pushState) {
var state = {
url : href
};
if (previousLinkAborted) {
// hack: there is already an aborted entry on stack
// so just modify the aborted one
history.replaceState(state, null, href);
} else {
history.pushState(state, null, href);
}
}
} else {
/**
* Manually fire the onsubmit event for the form, if any.
* The event was saved in the jQuery data object by an onload
* handler defined below. Workaround for bug #3583316
*/
var onsubmit = $(this).data('onsubmit');
// Submit the request if there is no onsubmit handler
// or if it returns a value that evaluates to true
if (typeof onsubmit !== 'function' || onsubmit.apply(this, [event])) {
AJAX.active = true;
AJAX.$msgbox = PMA_ajaxShowMessage();
$.post(url, params, AJAX.responseHandler);
}
}
},
/**
* Called after the request that was initiated by this.requestHandler()
* has completed successfully or with a caught error. For completely
* failed requests or requests with uncaught errors, see the .ajaxError
* handler at the bottom of this file.
*
* To refer to self use 'AJAX', instead of 'this' as this function
* is called in the jQuery context.
*
* @param object e Event data
*
* @return void
*/
responseHandler: function (data) {
if (typeof data === 'undefined' || data === null) {
return;
}
if (typeof data.success !== 'undefined' && data.success) {
$('html, body').animate({ scrollTop: 0 }, 'fast');
PMA_ajaxRemoveMessage(AJAX.$msgbox);
if (data._redirect) {
PMA_ajaxShowMessage(data._redirect, false);
AJAX.active = false;
AJAX.xhr = null;
return;
}
AJAX.scriptHandler.reset(function () {
if (data._reloadNavigation) {
PMA_reloadNavigation();
}
if (data._title) {
$('title').replaceWith(data._title);
}
if (data._menu) {
if (history && history.pushState) {
var state = {
url : data._selflink,
menu : data._menu
};
history.replaceState(state, null);
AJAX.handleMenu.replace(data._menu);
} else {
PMA_MicroHistory.menus.replace(data._menu);
PMA_MicroHistory.menus.add(data._menuHash, data._menu);
}
} else if (data._menuHash) {
if (! (history && history.pushState)) {
PMA_MicroHistory.menus.replace(PMA_MicroHistory.menus.get(data._menuHash));
}
}
if (data._disableNaviSettings) {
PMA_disableNaviSettings();
} else {
PMA_ensureNaviSettings(data._selflink);
}
// Remove all containers that may have
// been added outside of #page_content
$('body').children()
.not('#pma_navigation')
.not('#floating_menubar')
.not('#page_nav_icons')
.not('#page_content')
.not('#selflink')
.not('#pma_header')
.not('#pma_footer')
.not('#pma_demo')
.not('#pma_console_container')
.not('#prefs_autoload')
.remove();
// Replace #page_content with new content
if (data.message && data.message.length > 0) {
$('#page_content').replaceWith(
'<div id=\'page_content\'>' + data.message + '</div>'
);
PMA_highlightSQL($('#page_content'));
checkNumberOfFields();
}
if (data._selflink) {
var source = data._selflink.split('?')[0];
// Check for faulty links
$selflink_replace = {
'import.php': 'tbl_sql.php',
'tbl_chart.php': 'sql.php',
'tbl_gis_visualization.php': 'sql.php'
};
if ($selflink_replace[source]) {
var replacement = $selflink_replace[source];
data._selflink = data._selflink.replace(source, replacement);
}
$('#selflink').find('> a').attr('href', data._selflink);
}
if (data._params) {
PMA_commonParams.setAll(data._params);
}
if (data._scripts) {
AJAX.scriptHandler.load(data._scripts);
}
if (data._selflink && data._scripts && data._menuHash && data._params) {
if (! (history && history.pushState)) {
PMA_MicroHistory.add(
data._selflink,
data._scripts,
data._menuHash,
data._params,
AJAX.source.attr('rel')
);
}
}
if (data._displayMessage) {
$('#page_content').prepend(data._displayMessage);
PMA_highlightSQL($('#page_content'));
}
$('#pma_errors').remove();
var msg = '';
if (data._errSubmitMsg) {
msg = data._errSubmitMsg;
}
if (data._errors) {
$('<div/>', { id : 'pma_errors', class : 'clearfloat' })
.insertAfter('#selflink')
.append(data._errors);
// bind for php error reporting forms (bottom)
$('#pma_ignore_errors_bottom').on('click', function (e) {
e.preventDefault();
PMA_ignorePhpErrors();
});
$('#pma_ignore_all_errors_bottom').on('click', function (e) {
e.preventDefault();
PMA_ignorePhpErrors(false);
});
// In case of 'sendErrorReport'='always'
// submit the hidden error reporting form.
if (data._sendErrorAlways === '1' &&
data._stopErrorReportLoop !== '1'
) {
$('#pma_report_errors_form').submit();
PMA_ajaxShowMessage(PMA_messages.phpErrorsBeingSubmitted, false);
$('html, body').animate({ scrollTop:$(document).height() }, 'slow');
} else if (data._promptPhpErrors) {
// otherwise just prompt user if it is set so.
msg = msg + PMA_messages.phpErrorsFound;
// scroll to bottom where all the errors are displayed.
$('html, body').animate({ scrollTop:$(document).height() }, 'slow');
}
}
PMA_ajaxShowMessage(msg, false);
// bind for php error reporting forms (popup)
$('#pma_ignore_errors_popup').on('click', function () {
PMA_ignorePhpErrors();
});
$('#pma_ignore_all_errors_popup').on('click', function () {
PMA_ignorePhpErrors(false);
});
if (typeof AJAX._callback === 'function') {
AJAX._callback.call();
}
AJAX._callback = function () {};
});
} else {
PMA_ajaxShowMessage(data.error, false);
AJAX.active = false;
AJAX.xhr = null;
PMA_handleRedirectAndReload(data);
if (data.fieldWithError) {
$(':input.error').removeClass('error');
$('#' + data.fieldWithError).addClass('error');
}
}
},
/**
* This object is in charge of downloading scripts,
* keeping track of what's downloaded and firing
* the onload event for them when the page is ready.
*/
scriptHandler: {
/**
* @var array _scripts The list of files already downloaded
*/
_scripts: [],
/**
* @var string _scriptsVersion version of phpMyAdmin from which the
* scripts have been loaded
*/
_scriptsVersion: null,
/**
* @var array _scriptsToBeLoaded The list of files that
* need to be downloaded
*/
_scriptsToBeLoaded: [],
/**
* @var array _scriptsToBeFired The list of files for which
* to fire the onload and unload events
*/
_scriptsToBeFired: [],
_scriptsCompleted: false,
/**
* Records that a file has been downloaded
*
* @param string file The filename
* @param string fire Whether this file will be registering
* onload/teardown events
*
* @return self For chaining
*/
add: function (file, fire) {
this._scripts.push(file);
if (fire) {
// Record whether to fire any events for the file
// This is necessary to correctly tear down the initial page
this._scriptsToBeFired.push(file);
}
return this;
},
/**
* Download a list of js files in one request
*
* @param array files An array of filenames and flags
*
* @return void
*/
load: function (files, callback) {
var self = this;
var i;
// Clear loaded scripts if they are from another version of phpMyAdmin.
// Depends on common params being set before loading scripts in responseHandler
if (self._scriptsVersion === null) {
self._scriptsVersion = PMA_commonParams.get('PMA_VERSION');
} else if (self._scriptsVersion !== PMA_commonParams.get('PMA_VERSION')) {
self._scripts = [];
self._scriptsVersion = PMA_commonParams.get('PMA_VERSION');
}
self._scriptsCompleted = false;
self._scriptsToBeFired = [];
// We need to first complete list of files to load
// as next loop will directly fire requests to load them
// and that triggers removal of them from
// self._scriptsToBeLoaded
for (i in files) {
self._scriptsToBeLoaded.push(files[i].name);
if (files[i].fire) {
self._scriptsToBeFired.push(files[i].name);
}
}
for (i in files) {
var script = files[i].name;
// Only for scripts that we don't already have
if ($.inArray(script, self._scripts) === -1) {
this.add(script);
this.appendScript(script, callback);
} else {
self.done(script, callback);
}
}
// Trigger callback if there is nothing else to load
self.done(null, callback);
},
/**
* Called whenever all files are loaded
*
* @return void
*/
done: function (script, callback) {
if (typeof ErrorReport !== 'undefined') {
ErrorReport.wrap_global_functions();
}
if ($.inArray(script, this._scriptsToBeFired)) {
AJAX.fireOnload(script);
}
if ($.inArray(script, this._scriptsToBeLoaded)) {
this._scriptsToBeLoaded.splice($.inArray(script, this._scriptsToBeLoaded), 1);
}
if (script === null) {
this._scriptsCompleted = true;
}
/* We need to wait for last signal (with null) or last script load */
AJAX.active = (this._scriptsToBeLoaded.length > 0) || ! this._scriptsCompleted;
/* Run callback on last script */
if (! AJAX.active && $.isFunction(callback)) {
callback();
}
},
/**
* Appends a script element to the head to load the scripts
*
* @return void
*/
appendScript: function (name, callback) {
var head = document.head || document.getElementsByTagName('head')[0];
var script = document.createElement('script');
var self = this;
script.type = 'text/javascript';
script.src = 'js/' + name + '?' + 'v=' + encodeURIComponent(PMA_commonParams.get('PMA_VERSION'));
script.async = false;
script.onload = function () {
self.done(name, callback);
};
head.appendChild(script);
},
/**
* Fires all the teardown event handlers for the current page
* and rebinds all forms and links to the request handler
*
* @param function callback The callback to call after resetting
*
* @return void
*/
reset: function (callback) {
for (var i in this._scriptsToBeFired) {
AJAX.fireTeardown(this._scriptsToBeFired[i]);
}
this._scriptsToBeFired = [];
/**
* Re-attach a generic event handler to clicks
* on pages and submissions of forms
*/
$(document).off('click', 'a').on('click', 'a', AJAX.requestHandler);
$(document).off('submit', 'form').on('submit', 'form', AJAX.requestHandler);
if (! (history && history.pushState)) {
PMA_MicroHistory.update();
}
callback();
}
}
};
/**
* Here we register a function that will remove the onsubmit event from all
* forms that will be handled by the generic page loader. We then save this
* event handler in the "jQuery data", so that we can fire it up later in
* AJAX.requestHandler().
*
* See bug #3583316
*/
AJAX.registerOnload('functions.js', function () {
// Registering the onload event for functions.js
// ensures that it will be fired for all pages
$('form').not('.ajax').not('.disableAjax').each(function () {
if ($(this).attr('onsubmit')) {
$(this).data('onsubmit', this.onsubmit).attr('onsubmit', '');
}
});
var $page_content = $('#page_content');
/**
* Workaround for passing submit button name,value on ajax form submit
* by appending hidden element with submit button name and value.
*/
$page_content.on('click', 'form input[type=submit]', function () {
var buttonName = $(this).attr('name');
if (typeof buttonName === 'undefined') {
return;
}
$(this).closest('form').append($('<input/>', {
'type' : 'hidden',
'name' : buttonName,
'value': $(this).val()
}));
});
/**
* Attach event listener to events when user modify visible
* Input,Textarea and select fields to make changes in forms
*/
$page_content.on(
'keyup change',
'form.lock-page textarea, ' +
'form.lock-page input[type="text"], ' +
'form.lock-page input[type="number"], ' +
'form.lock-page select',
{ value:1 },
AJAX.lockPageHandler
);
$page_content.on(
'change',
'form.lock-page input[type="checkbox"], ' +
'form.lock-page input[type="radio"]',
{ value:2 },
AJAX.lockPageHandler
);
/**
* Reset lock when lock-page form reset event is fired
* Note: reset does not bubble in all browser so attach to
* form directly.
*/
$('form.lock-page').on('reset', function (event) {
AJAX.resetLock();
});
});
/**
* Page load event handler
*/
$(function () {
var menuContent = $('<div></div>')
.append($('#serverinfo').clone())
.append($('#topmenucontainer').clone())
.html();
if (history && history.pushState) {
// set initial state reload
var initState = ('state' in window.history && window.history.state !== null);
var initURL = $('#selflink').find('> a').attr('href') || location.href;
var state = {
url : initURL,
menu : menuContent
};
history.replaceState(state, null);
$(window).on('popstate', function (event) {
var initPop = (! initState && location.href === initURL);
initState = true;
// check if popstate fired on first page itself
if (initPop) {
return;
}
var state = event.originalEvent.state;
if (state && state.menu) {
AJAX.$msgbox = PMA_ajaxShowMessage();
var params = 'ajax_request=true' + PMA_commonParams.get('arg_separator') + 'ajax_page_request=true';
var url = state.url || location.href;
$.get(url, params, AJAX.responseHandler);
// TODO: Check if sometimes menu is not retrieved from server,
// Not sure but it seems menu was missing only for printview which
// been removed lately, so if it's right some dead menu checks/fallbacks
// may need to be removed from this file and Header.php
// AJAX.handleMenu.replace(event.originalEvent.state.menu);
}
});
} else {
// Fallback to microhistory mechanism
AJAX.scriptHandler
.load([{ 'name' : 'microhistory.js', 'fire' : 1 }], function () {
// The cache primer is set by the footer class
if (PMA_MicroHistory.primer.url) {
PMA_MicroHistory.menus.add(
PMA_MicroHistory.primer.menuHash,
menuContent
);
}
$(function () {
// Queue up this event twice to make sure that we get a copy
// of the page after all other onload events have been fired
if (PMA_MicroHistory.primer.url) {
PMA_MicroHistory.add(
PMA_MicroHistory.primer.url,
PMA_MicroHistory.primer.scripts,
PMA_MicroHistory.primer.menuHash
);
}
});
});
}
});
/**
* Attach a generic event handler to clicks
* on pages and submissions of forms
*/
$(document).on('click', 'a', AJAX.requestHandler);
$(document).on('submit', 'form', AJAX.requestHandler);
/**
* Gracefully handle fatal server errors
* (e.g: 500 - Internal server error)
*/
$(document).ajaxError(function (event, request, settings) {
if (AJAX._debug) {
console.log('AJAX error: status=' + request.status + ', text=' + request.statusText);
}
// Don't handle aborted requests
if (request.status !== 0 || request.statusText !== 'abort') {
var details = '';
var state = request.state();
if (request.status !== 0) {
details += '<div>' + escapeHtml(PMA_sprintf(PMA_messages.strErrorCode, request.status)) + '</div>';
}
details += '<div>' + escapeHtml(PMA_sprintf(PMA_messages.strErrorText, request.statusText + ' (' + state + ')')) + '</div>';
if (state === 'rejected' || state === 'timeout') {
details += '<div>' + escapeHtml(PMA_messages.strErrorConnection) + '</div>';
}
PMA_ajaxShowMessage(
'<div class="error">' +
PMA_messages.strErrorProcessingRequest +
details +
'</div>',
false
);
AJAX.active = false;
AJAX.xhr = null;
}
});
