drupal-civicrm/sites/all/modules/civicrm/js/jquery/jquery.dashboard.js
2018-01-14 13:10:16 +00:00

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// https://civicrm.org/licensing
/* global CRM, ts */
/*jshint loopfunc: true */
(function($) {
'use strict';
// Constructor for dashboard object.
$.fn.dashboard = function(options) {
// Public properties of dashboard.
var dashboard = {};
dashboard.element = this.empty();
dashboard.ready = false;
dashboard.columns = [];
dashboard.widgets = {};
/**
* Public methods of dashboard.
*/
// Saves the order of widgets for all columns including the widget.minimized status to options.ajaxCallbacks.saveColumns.
dashboard.saveColumns = function(showStatus) {
// Update the display status of the empty placeholders.
$.each(dashboard.columns, function(c, col) {
if ( typeof col == 'object' ) {
// Are there any visible children of the column (excluding the empty placeholder)?
if (col.element.children(':visible').not(col.emptyPlaceholder).length > 0) {
col.emptyPlaceholder.hide();
}
else {
col.emptyPlaceholder.show();
}
}
});
// Don't save any changes to the server unless the dashboard has finished initiating.
if (!dashboard.ready) {
return;
}
// Build a list of params to post to the server.
var params = {};
// For each column...
$.each(dashboard.columns, function(c, col) {
// IDs of the sortable elements in this column.
var ids = (typeof col == 'object') ? col.element.sortable('toArray') : [];
// For each id...
$.each(ids, function(w, id) {
if (typeof id == 'string') {
// Chop 'widget-' off of the front so that we have the real widget id.
id = id.substring('widget-'.length);
// Add one flat property to the params object that will look like an array element to the PHP server.
// Unfortunately jQuery doesn't do this for us.
if (typeof dashboard.widgets[id] == 'object') params['columns[' + c + '][' + id + ']'] = (dashboard.widgets[id].minimized ? '1' : '0');
}
});
});
// The ajaxCallback settings overwrite any duplicate properties.
$.extend(params, opts.ajaxCallbacks.saveColumns.data);
var post = $.post(opts.ajaxCallbacks.saveColumns.url, params, function() {
invokeCallback(opts.callbacks.saveColumns, dashboard);
});
if (showStatus !== false) {
CRM.status({}, post);
}
};
/**
* Private properties of dashboard.
*/
// Used to determine whether two resort events are resulting from the same UI event.
var currentReSortEvent = null;
// Merge in the caller's options with the defaults.
var opts = $.extend({}, $.fn.dashboard.defaults, options);
var localCache = window.localStorage && localStorage.dashboard ? JSON.parse(localStorage.dashboard) : {};
init(opts.widgetsByColumn);
return dashboard;
/**
* Private methods of dashboard.
*/
// Initialize widget columns.
function init(widgets) {
var markup = '<li class="empty-placeholder">' + opts.emptyPlaceholderInner + '</li>';
// Build the dashboard in the DOM. For each column...
// (Don't iterate on widgets since this will break badly if the dataset has empty columns.)
var emptyDashboard = true;
for (var c = 0; c < opts.columns; c++) {
// Save the column to both the public scope for external accessibility and the local scope for readability.
var col = dashboard.columns[c] = {
initialWidgets: [],
element: $('<ul id="column-' + c + '" class="column column-' + c + '"></ul>').appendTo(dashboard.element)
};
// Add the empty placeholder now, hide it and save it.
col.emptyPlaceholder = $(markup).appendTo(col.element).hide();
// For each widget in this column.
$.each(widgets[c], function(num, item) {
var id = (num+1) + '-' + item.id;
col.initialWidgets[id] = dashboard.widgets[item.id] = widget($.extend({
element: $('<li class="widget"></li>').appendTo(col.element),
initialColumn: col
}, item));
emptyDashboard = false;
});
}
if (emptyDashboard) {
emptyDashboardCondition();
} else {
completeInit();
}
invokeCallback(opts.callbacks.init, dashboard);
}
// function that is called when dashboard is empty
function emptyDashboardCondition( ) {
$(".show-refresh").hide( );
$("#empty-message").show( );
}
// Cache dashlet info in localStorage
function saveLocalCache() {
localCache = {};
$.each(dashboard.widgets, function(id, widget) {
localCache[id] = {
content: widget.content,
lastLoaded: widget.lastLoaded,
minimized: widget.minimized
};
});
if (window.localStorage) {
localStorage.dashboard = JSON.stringify(localCache);
}
}
// Contructors for each widget call this when initialization has finished so that dashboard can complete it's intitialization.
function completeInit() {
// Only do this once.
if (dashboard.ready) {
return;
}
// Make widgets sortable across columns.
dashboard.sortableElement = $('.column').sortable({
connectWith: ['.column'],
// The class of the element by which widgets are draggable.
handle: '.widget-header',
// The class of placeholder elements (the 'ghost' widget showing where the dragged item would land if released now.)
placeholder: 'placeholder',
activate: function(event, ui) {
var h= $(ui.item).height();
$('.placeholder').css('height', h +'px');
},
opacity: 0.2,
// Maks sure that only widgets are sortable, and not empty placeholders.
items: '> .widget',
forcePlaceholderSize: true,
// Callback functions.
update: resorted,
start: hideEmptyPlaceholders
});
// Update empty placeholders.
dashboard.saveColumns();
dashboard.ready = true;
invokeCallback(opts.callbacks.ready, dashboard);
// Auto-refresh widgets when content is stale
window.setInterval(function() {
if (!document.hasFocus || document.hasFocus()) {
$.each(dashboard.widgets, function (i, widget) {
if (!widget.cacheIsFresh()) {
widget.reloadContent();
}
});
}
}, 5000);
}
// Callback for when any list has changed (and the user has finished resorting).
function resorted(e, ui) {
// Only do anything if we haven't already handled resorts based on changes from this UI DOM event.
// (resorted() gets invoked once for each list when an item is moved from one to another.)
if (!currentReSortEvent || e.originalEvent != currentReSortEvent) {
currentReSortEvent = e.originalEvent;
dashboard.saveColumns();
}
}
// Callback for when a user starts resorting a list. Hides all the empty placeholders.
function hideEmptyPlaceholders(e, ui) {
for (var c in dashboard.columns) {
if( (typeof dashboard.columns[c]) == 'object' ) dashboard.columns[c].emptyPlaceholder.hide();
}
}
// @todo use an event library to register, bind to and invoke events.
// @param callback is a function.
// @param theThis is the context given to that function when it executes. It becomes 'this' inside of that function.
function invokeCallback(callback, theThis, parameterOne) {
if (callback) {
callback.call(theThis, parameterOne);
}
}
/**
* widget object
* Private sub-class of dashboard
* Constructor starts
*/
function widget(widget) {
// Merge default options with the options defined for this widget.
widget = $.extend({}, $.fn.dashboard.widget.defaults, localCache[widget.id] || {}, widget);
/**
* Public methods of widget.
*/
// Toggles the minimize() & maximize() methods.
widget.toggleMinimize = function() {
if (widget.minimized) {
widget.maximize();
}
else {
widget.minimize();
}
widget.hideSettings();
};
widget.minimize = function() {
$('.widget-content', widget.element).slideUp(opts.animationSpeed);
$(widget.controls.minimize.element)
.addClass('fa-caret-right')
.removeClass('fa-caret-down')
.attr('title', ts('Expand'));
widget.minimized = true;
saveLocalCache();
};
widget.maximize = function() {
$(widget.controls.minimize.element)
.removeClass( 'fa-caret-right' )
.addClass( 'fa-caret-down' )
.attr('title', ts('Collapse'));
widget.minimized = false;
saveLocalCache();
if (!widget.contentLoaded) {
loadContent();
}
$('.widget-content', widget.element).slideDown(opts.animationSpeed);
};
// Toggles whether the widget is in settings-display mode or not.
widget.toggleSettings = function() {
if (widget.settings.displayed) {
// Widgets always exit settings into maximized state.
widget.maximize();
widget.hideSettings();
invokeCallback(opts.widgetCallbacks.hideSettings, widget);
}
else {
widget.minimize();
widget.showSettings();
invokeCallback(opts.widgetCallbacks.showSettings, widget);
}
};
widget.showSettings = function() {
if (widget.settings.element) {
widget.settings.element.show();
// Settings are loaded via AJAX. Only execute the script if the settings have been loaded.
if (widget.settings.ready) {
getJavascript(widget.settings.script);
}
}
else {
// Settings have not been initialized. Do so now.
initSettings();
}
widget.settings.displayed = true;
};
widget.hideSettings = function() {
if (widget.settings.element) {
widget.settings.element.hide();
}
widget.settings.displayed = false;
};
widget.saveSettings = function() {
// Build list of parameters to POST to server.
var params = {};
// serializeArray() returns an array of objects. Process it.
var fields = widget.settings.element.serializeArray();
$.each(fields, function(i, field) {
// Put the values into flat object properties that PHP will parse into an array server-side.
// (Unfortunately jQuery doesn't do this)
params['settings[' + field.name + ']'] = field.value;
});
// Things get messy here.
// @todo Refactor to use currentState and targetedState properties to determine what needs
// to be done to get to any desired state on any UI or AJAX event since these don't always
// match.
// E.g. When a user starts a new UI event before the Ajax event handler from a previous
// UI event gets invoked.
// Hide the settings first of all.
widget.toggleSettings();
// Save the real settings element so that we can restore the reference later.
var settingsElement = widget.settings.element;
// Empty the settings form.
widget.settings.innerElement.empty();
initThrobber();
// So that showSettings() and hideSettings() can do SOMETHING, without showing the empty settings form.
widget.settings.element = widget.throbber.hide();
widget.settings.ready = false;
// Save the settings to the server.
$.extend(params, opts.ajaxCallbacks.widgetSettings.data, { id: widget.id });
$.post(opts.ajaxCallbacks.widgetSettings.url, params, function(response, status) {
// Merge the response into widget.settings.
$.extend(widget.settings, response);
// Restore the reference to the real settings element.
widget.settings.element = settingsElement;
// Make sure the settings form is empty and add the updated settings form.
widget.settings.innerElement.empty().append(widget.settings.markup);
widget.settings.ready = true;
// Did the user already jump back into settings-display mode before we could finish reloading the settings form?
if (widget.settings.displayed) {
// Ooops! We had better take care of hiding the throbber and showing the settings form then.
widget.throbber.hide();
widget.showSettings();
invokeCallback(opts.widgetCallbacks.saveSettings, dashboard);
}
}, 'json');
// Don't let form submittal bubble up.
return false;
};
widget.enterFullscreen = function() {
// Make sure the widget actually supports full screen mode.
if (widget.fullscreenUrl) {
CRM.loadPage(widget.fullscreenUrl);
}
};
// Adds controls to a widget. id is for internal use and image file name in images/dashboard/ (a .gif).
widget.addControl = function(id, control) {
var markup = '<a class="crm-i ' + control.icon + '" alt="' + control.description + '" title="' + control.description + '"></a>';
control.element = $(markup).prependTo($('.widget-controls', widget.element)).click(control.callback);
};
// Fetch remote content.
widget.reloadContent = function() {
// If minimized, we'll reload later
if (widget.minimized) {
widget.contentLoaded = false;
widget.lastLoaded = 0;
} else {
CRM.loadPage(widget.url, {target: widget.contentElement});
}
};
// Removes the widget from the dashboard, and saves columns.
widget.remove = function() {
invokeCallback(opts.widgetCallbacks.remove, widget);
widget.element.fadeOut(opts.animationSpeed, function() {
$(this).remove();
delete(dashboard.widgets[widget.id]);
dashboard.saveColumns(false);
});
CRM.alert(
ts('You can re-add it by clicking the "Configure Your Dashboard" button.'),
ts('"%1" Removed', {1: widget.title}),
'success'
);
};
widget.cacheIsFresh = function() {
return (((widget.cacheMinutes * 60000 + widget.lastLoaded) > $.now()) && widget.content);
};
/**
* Public properties of widget.
*/
// Default controls. External script can add more with widget.addControls()
widget.controls = {
settings: {
description: ts('Configure this dashlet'),
callback: widget.toggleSettings,
icon: 'fa-wrench'
},
minimize: {
description: widget.minimized ? ts('Expand') : ts('Collapse'),
callback: widget.toggleMinimize,
icon: widget.minimized ? 'fa-caret-right' : 'fa-caret-down'
},
fullscreen: {
description: ts('View fullscreen'),
callback: widget.enterFullscreen,
icon: 'fa-expand'
},
close: {
description: ts('Remove from dashboard'),
callback: widget.remove,
icon: 'fa-times'
}
};
widget.contentLoaded = false;
init();
return widget;
/**
* Private methods of widget.
*/
function loadContent() {
var loadFromCache = widget.cacheIsFresh();
if (loadFromCache) {
widget.contentElement.html(widget.content).trigger('crmLoad', widget);
}
widget.contentElement.off('crmLoad').on('crmLoad', function(event, data) {
if ($(event.target).is(widget.contentElement)) {
widget.content = data.content;
// Cache for one day
widget.lastLoaded = $.now();
saveLocalCache();
invokeCallback(opts.widgetCallbacks.get, widget);
}
});
if (!loadFromCache) {
widget.reloadContent();
}
widget.contentLoaded = true;
}
// Build widget & load content.
function init() {
// Delete controls that don't apply to this widget.
if (!widget.settings) {
delete widget.controls.settings;
widget.settings = {};
}
if (!widget.fullscreenUrl) {
delete widget.controls.fullscreen;
}
var cssClass = 'widget-' + widget.name.replace('/', '-');
widget.element.attr('id', 'widget-' + widget.id).addClass(cssClass);
// Build and add the widget's DOM element.
$(widget.element).append(widgetHTML());
// Save the content element so that external scripts can reload it easily.
widget.contentElement = $('.widget-content', widget.element);
$.each(widget.controls, widget.addControl);
if (widget.minimized) {
widget.contentElement.hide();
} else {
loadContent();
}
}
// Builds inner HTML for widgets.
function widgetHTML() {
var html = '';
html += '<div class="widget-wrapper">';
html += ' <div class="widget-controls"><h3 class="widget-header">' + widget.title + '</h3></div>';
html += ' <div class="widget-content"></div>';
html += '</div>';
return html;
}
// Initializes a widgets settings pane.
function initSettings() {
// Overwrite widget.settings (boolean).
initThrobber();
widget.settings = {
element: widget.throbber.show(),
ready: false
};
// Get the settings markup and script executables for this widget.
var params = $.extend({}, opts.ajaxCallbacks.widgetSettings.data, { id: widget.id });
$.getJSON(opts.ajaxCallbacks.widgetSettings.url, params, function(response, status) {
$.extend(widget.settings, response);
// Build and add the settings form to the DOM. Bind the form's submit event handler/callback.
widget.settings.element = $(widgetSettingsHTML()).appendTo($('.widget-wrapper', widget.element)).submit(widget.saveSettings);
// Bind the cancel button's event handler too.
widget.settings.cancelButton = $('.widget-settings-cancel', widget.settings.element).click(cancelEditSettings);
// Build and add the inner form elements from the HTML markup provided in the AJAX data.
widget.settings.innerElement = $('.widget-settings-inner', widget.settings.element).append(widget.settings.markup);
widget.settings.ready = true;
if (widget.settings.displayed) {
// If the user hasn't clicked away from the settings pane, then display the form.
widget.throbber.hide();
widget.showSettings();
}
getJavascript(widget.settings.initScript);
});
}
// Builds HTML for widget settings forms.
function widgetSettingsHTML() {
var html = '';
html += '<form class="widget-settings">';
html += ' <div class="widget-settings-inner"></div>';
html += ' <div class="widget-settings-buttons">';
html += ' <input id="' + widget.id + '-settings-save" class="widget-settings-save" value="Save" type="submit" />';
html += ' <input id="' + widget.id + '-settings-cancel" class="widget-settings-cancel" value="Cancel" type="submit" />';
html += ' </div>';
html += '</form>';
return html;
}
// Initializes a generic widget content throbber, for use by settings form and external scripts.
function initThrobber() {
if (!widget.throbber) {
widget.throbber = $(opts.throbberMarkup).appendTo($('.widget-wrapper', widget.element));
}
}
// Event handler/callback for cancel button clicks.
// @todo test this gets caught by all browsers when the cancel button is 'clicked' via the keyboard.
function cancelEditSettings() {
widget.toggleSettings();
return false;
}
// Helper function to execute external script on the server.
// @todo It would be nice to provide some context to the script. How?
function getJavascript(url) {
if (url) {
$.getScript(url);
}
}
}
};
// Public static properties of dashboard. Default settings.
$.fn.dashboard.defaults = {
columns: 2,
emptyPlaceholderInner: '',
throbberMarkup: '',
animationSpeed: 200,
callbacks: {},
widgetCallbacks: {}
};
// Default widget settings.
$.fn.dashboard.widget = {
defaults: {
minimized: false,
content: null,
lastLoaded: 0,
settings: false
// id, url, fullscreenUrl, title, name, cacheMinutes
}
};
})(jQuery);