angular.js/src/Widgets.js
2010-01-24 19:33:04 -08:00

796 lines
22 KiB
JavaScript

function WidgetFactory(serverUrl, database) {
this.nextUploadId = 0;
this.serverUrl = serverUrl;
this.database = database;
if (window['swfobject']) {
this.createSWF = window['swfobject']['createSWF'];
} else {
this.createSWF = function(){
alert("ERROR: swfobject not loaded!");
};
}
};
WidgetFactory.prototype = {
createController: function(input, scope) {
var controller;
var type = input.attr('type').toLowerCase();
var exp = input.attr('name');
if (exp) exp = exp.split(':').pop();
var event = "change";
var bubbleEvent = true;
if (type == 'button' || type == 'submit' || type == 'reset' || type == 'image') {
controller = new ButtonController(input[0], exp);
event = "click";
bubbleEvent = false;
} else if (type == 'text' || type == 'textarea' || type == 'hidden' || type == 'password') {
controller = new TextController(input[0], exp);
event = "keyup change";
} else if (type == 'checkbox') {
controller = new CheckboxController(input[0], exp);
event = "click";
} else if (type == 'radio') {
controller = new RadioController(input[0], exp);
event="click";
} else if (type == 'select-one') {
controller = new SelectController(input[0], exp);
} else if (type == 'select-multiple') {
controller = new MultiSelectController(input[0], exp);
} else if (type == 'file') {
controller = this.createFileController(input, exp);
} else {
throw 'Unknown type: ' + type;
}
input.data('controller', controller);
var updateView = scope.get('$updateView');
var action = function() {
if (controller.updateModel(scope)) {
var action = jQuery(controller.view).attr('ng-action') || "";
if (scope.evalWidget(controller, action)) {
updateView(scope);
}
}
return bubbleEvent;
};
jQuery(controller.view, ":input").
bind(event, action);
return controller;
},
createFileController: function(fileInput) {
var uploadId = '__uploadWidget_' + (this.nextUploadId++);
var view = FileController.template(uploadId);
fileInput.after(view);
var att = {
'data':this.serverUrl + "/admin/ServerAPI.swf",
'width':"95", 'height':"20", 'align':"top",
'wmode':"transparent"};
var par = {
'flashvars':"uploadWidgetId=" + uploadId,
'allowScriptAccess':"always"};
var swfNode = this.createSWF(att, par, uploadId);
fileInput.remove();
var cntl = new FileController(view, fileInput[0].name, swfNode, this.serverUrl + "/data/" + this.database);
jQuery(swfNode).data('controller', cntl);
return cntl;
}
};
/////////////////////
// FileController
///////////////////////
function FileController(view, scopeName, uploader, databaseUrl) {
this.view = view;
this.uploader = uploader;
this.scopeName = scopeName;
this.attachmentsPath = databaseUrl + '/_attachments';
this.value = null;
this.lastValue = undefined;
};
angularCallbacks['flashEvent'] = function(id, event, args) {
var object = document.getElementById(id);
var jobject = jQuery(object);
var controller = jobject.data("controller");
FileController.prototype[event].apply(controller, args);
_.defer(jobject.scope().get('$updateView'));
};
FileController.template = function(id) {
return jQuery('<span class="ng-upload-widget">' +
'<input type="checkbox" ng-non-bindable="true"/>' +
'<object id="' + id + '" />' +
'<a></a>' +
'<span/>' +
'</span>');
};
extend(FileController.prototype, {
'cancel': noop,
'complete': noop,
'httpStatus': function(status) {
alert("httpStatus:" + this.scopeName + " status:" + status);
},
'ioError': function() {
alert("ioError:" + this.scopeName);
},
'open': function() {
alert("open:" + this.scopeName);
},
'progress':noop,
'securityError': function() {
alert("securityError:" + this.scopeName);
},
'uploadCompleteData': function(data) {
var value = fromJson(data);
value.url = this.attachmentsPath + '/' + value.id + '/' + value.text;
this.view.find("input").attr('checked', true);
var scope = this.view.scope();
this.value = value;
this.updateModel(scope);
this.value = null;
},
'select': function(name, size, type) {
this.name = name;
this.view.find("a").text(name).attr('href', name);
this.view.find("span").text(angular['filter']['bytes'](size));
this.upload();
},
updateModel: function(scope) {
var isChecked = this.view.find("input").attr('checked');
var value = isChecked ? this.value : null;
if (this.lastValue === value) {
return false;
} else {
scope.set(this.scopeName, value);
return true;
}
},
updateView: function(scope) {
var modelValue = scope.get(this.scopeName);
if (modelValue && this.value !== modelValue) {
this.value = modelValue;
this.view.find("a").
attr("href", this.value.url).
text(this.value.text);
this.view.find("span").text(angular['filter']['bytes'](this.value.size));
}
this.view.find("input").attr('checked', !!modelValue);
},
upload: function() {
if (this.name) {
this.uploader['uploadFile'](this.attachmentsPath);
}
}
});
///////////////////////
// NullController
///////////////////////
function NullController(view) {this.view = view;};
NullController.prototype = {
updateModel: function() { return true; },
updateView: noop
};
NullController.instance = new NullController();
///////////////////////
// ButtonController
///////////////////////
var ButtonController = NullController;
///////////////////////
// TextController
///////////////////////
function TextController(view, exp) {
this.view = view;
this.exp = exp;
this.validator = view.getAttribute('ng-validate');
this.required = typeof view.attributes['ng-required'] != "undefined";
this.lastErrorText = null;
this.lastValue = undefined;
this.initialValue = view.value;
var widget = view.getAttribute('ng-widget');
if (widget === 'datepicker') {
jQuery(view).datepicker();
}
};
TextController.prototype = {
updateModel: function(scope) {
var value = this.view.value;
if (this.lastValue === value) {
return false;
} else {
scope.setEval(this.exp, value);
this.lastValue = value;
return true;
}
},
updateView: function(scope) {
var view = this.view;
var value = scope.get(this.exp);
if (typeof value === "undefined") {
value = this.initialValue;
scope.setEval(this.exp, value);
}
value = value ? value : '';
if (this.lastValue != value) {
view.value = value;
this.lastValue = value;
}
var isValidationError = false;
view.removeAttribute('ng-error');
if (this.required) {
isValidationError = !(value && value.length > 0);
}
var errorText = isValidationError ? "Required Value" : null;
if (!isValidationError && this.validator && value) {
errorText = scope.validate(this.validator, value);
isValidationError = !!errorText;
}
if (this.lastErrorText !== errorText) {
this.lastErrorText = isValidationError;
if (errorText !== null) {
view.setAttribute('ng-error', errorText);
scope.markInvalid(this);
}
jQuery(view).toggleClass('ng-validation-error', isValidationError);
}
}
};
///////////////////////
// CheckboxController
///////////////////////
function CheckboxController(view, exp) {
this.view = view;
this.exp = exp;
this.lastValue = undefined;
this.initialValue = view.checked ? view.value : "";
};
CheckboxController.prototype = {
updateModel: function(scope) {
var input = this.view;
var value = input.checked ? input.value : '';
if (this.lastValue === value) {
return false;
} else {
scope.setEval(this.exp, value);
this.lastValue = value;
return true;
}
},
updateView: function(scope) {
var input = this.view;
var value = scope.eval(this.exp);
if (typeof value === "undefined") {
value = this.initialValue;
scope.setEval(this.exp, value);
}
input.checked = input.value == (''+value);
}
};
///////////////////////
// SelectController
///////////////////////
function SelectController(view, exp) {
this.view = view;
this.exp = exp;
this.lastValue = undefined;
this.initialValue = view.value;
};
SelectController.prototype = {
updateModel: function(scope) {
var input = this.view;
if (input.selectedIndex < 0) {
scope.setEval(this.exp, null);
} else {
var value = this.view.value;
if (this.lastValue === value) {
return false;
} else {
scope.setEval(this.exp, value);
this.lastValue = value;
return true;
}
}
},
updateView: function(scope) {
var input = this.view;
var value = scope.get(this.exp);
if (typeof value === 'undefined') {
value = this.initialValue;
scope.setEval(this.exp, value);
}
if (value !== this.lastValue) {
input.value = value ? value : "";
this.lastValue = value;
}
}
};
///////////////////////
// MultiSelectController
///////////////////////
function MultiSelectController(view, exp) {
this.view = view;
this.exp = exp;
this.lastValue = undefined;
this.initialValue = this.selected();
};
MultiSelectController.prototype = {
selected: function () {
var value = [];
var options = this.view.options;
for ( var i = 0; i < options.length; i++) {
var option = options[i];
if (option.selected) {
value.push(option.value);
}
}
return value;
},
updateModel: function(scope) {
var value = this.selected();
// TODO: This is wrong! no caching going on here as we are always comparing arrays
if (this.lastValue === value) {
return false;
} else {
scope.setEval(this.exp, value);
this.lastValue = value;
return true;
}
},
updateView: function(scope) {
var input = this.view;
var selected = scope.get(this.exp);
if (typeof selected === "undefined") {
selected = this.initialValue;
scope.setEval(this.exp, selected);
}
if (selected !== this.lastValue) {
var options = input.options;
for ( var i = 0; i < options.length; i++) {
var option = options[i];
option.selected = _.include(selected, option.value);
}
this.lastValue = selected;
}
}
};
///////////////////////
// RadioController
///////////////////////
function RadioController(view, exp) {
this.view = view;
this.exp = exp;
this.lastChecked = undefined;
this.lastValue = undefined;
this.inputValue = view.value;
this.initialValue = view.checked ? view.value : null;
};
RadioController.prototype = {
updateModel: function(scope) {
var input = this.view;
if (this.lastChecked) {
return false;
} else {
input.checked = true;
this.lastValue = scope.setEval(this.exp, this.inputValue);
this.lastChecked = true;
return true;
}
},
updateView: function(scope) {
var input = this.view;
var value = scope.get(this.exp);
if (this.initialValue && typeof value === "undefined") {
value = this.initialValue;
scope.setEval(this.exp, value);
}
if (this.lastValue != value) {
this.lastChecked = input.checked = this.inputValue == (''+value);
this.lastValue = value;
}
}
};
///////////////////////
//ElementController
///////////////////////
function BindUpdater(view, exp) {
this.view = view;
this.exp = Binder.parseBindings(exp);
this.hasError = false;
this.scopeSelf = {element:view};
};
BindUpdater.toText = function(obj) {
var e = escapeHtml;
switch(typeof obj) {
case "string":
case "boolean":
case "number":
return e(obj);
case "function":
return BindUpdater.toText(obj());
case "object":
if (isNode(obj)) {
return outerHTML(obj);
} else if (obj instanceof angular.filter.Meta) {
switch(typeof obj.html) {
case "string":
case "number":
return obj.html;
case "function":
return obj.html();
case "object":
if (isNode(obj.html))
return outerHTML(obj.html);
default:
break;
}
switch(typeof obj.text) {
case "string":
case "number":
return e(obj.text);
case "function":
return e(obj.text());
default:
break;
}
}
if (obj === null)
return "";
return e(toJson(obj, true));
default:
return "";
}
};
BindUpdater.prototype = {
updateModel: noop,
updateView: function(scope) {
var html = [];
var parts = this.exp;
var length = parts.length;
for(var i=0; i<length; i++) {
var part = parts[i];
var binding = Binder.binding(part);
if (binding) {
scope.evalWidget(this, binding, this.scopeSelf, function(value){
html.push(BindUpdater.toText(value));
}, function(e, text){
setHtml(this.view, text);
});
if (this.hasError) {
return;
}
} else {
html.push(escapeHtml(part));
}
}
setHtml(this.view, html.join(''));
}
};
function BindAttrUpdater(view, attrs) {
this.view = view;
this.attrs = attrs;
};
BindAttrUpdater.prototype = {
updateModel: noop,
updateView: function(scope) {
var jNode = jQuery(this.view);
var attributeTemplates = this.attrs;
if (this.hasError) {
this.hasError = false;
jNode.
removeClass('ng-exception').
removeAttr('ng-error');
}
var isImage = jNode.is('img');
for (var attrName in attributeTemplates) {
var attributeTemplate = Binder.parseBindings(attributeTemplates[attrName]);
var attrValues = [];
for ( var i = 0; i < attributeTemplate.length; i++) {
var binding = Binder.binding(attributeTemplate[i]);
if (binding) {
try {
var value = scope.eval(binding, {element:jNode[0], attrName:attrName});
if (value && (value.constructor !== array || value.length !== 0))
attrValues.push(value);
} catch (e) {
this.hasError = true;
error('BindAttrUpdater', e);
var jsonError = toJson(e, true);
attrValues.push('[' + jsonError + ']');
jNode.
addClass('ng-exception').
attr('ng-error', jsonError);
}
} else {
attrValues.push(attributeTemplate[i]);
}
}
var attrValue = attrValues.length ? attrValues.join('') : null;
if(isImage && attrName == 'src' && !attrValue)
attrValue = scope.get('$config.blankImage');
jNode.attr(attrName, attrValue);
}
}
};
function EvalUpdater(view, exp) {
this.view = view;
this.exp = exp;
this.hasError = false;
};
EvalUpdater.prototype = {
updateModel: noop,
updateView: function(scope) {
scope.evalWidget(this, this.exp);
}
};
function HideUpdater(view, exp) { this.view = view; this.exp = exp; };
HideUpdater.prototype = {
updateModel: noop,
updateView: function(scope) {
scope.evalWidget(this, this.exp, {}, function(hideValue){
var view = jQuery(this.view);
if (toBoolean(hideValue)) {
view.hide();
} else {
view.show();
}
});
}
};
function ShowUpdater(view, exp) { this.view = view; this.exp = exp; };
ShowUpdater.prototype = {
updateModel: noop,
updateView: function(scope) {
scope.evalWidget(this, this.exp, {}, function(hideValue){
var view = jQuery(this.view);
if (toBoolean(hideValue)) {
view.show();
} else {
view.hide();
}
});
}
};
function ClassUpdater(view, exp) { this.view = view; this.exp = exp; };
ClassUpdater.prototype = {
updateModel: noop,
updateView: function(scope) {
scope.evalWidget(this, this.exp, {}, function(classValue){
if (classValue !== null && classValue !== undefined) {
this.view.className = classValue;
}
});
}
};
function ClassEvenUpdater(view, exp) { this.view = view; this.exp = exp; };
ClassEvenUpdater.prototype = {
updateModel: noop,
updateView: function(scope) {
scope.evalWidget(this, this.exp, {}, function(classValue){
var index = scope.get('$index');
jQuery(this.view).toggleClass(classValue, index % 2 === 1);
});
}
};
function ClassOddUpdater(view, exp) { this.view = view; this.exp = exp; };
ClassOddUpdater.prototype = {
updateModel: noop,
updateView: function(scope) {
scope.evalWidget(this, this.exp, {}, function(classValue){
var index = scope.get('$index');
jQuery(this.view).toggleClass(classValue, index % 2 === 0);
});
}
};
function StyleUpdater(view, exp) { this.view = view; this.exp = exp; };
StyleUpdater.prototype = {
updateModel: noop,
updateView: function(scope) {
scope.evalWidget(this, this.exp, {}, function(styleValue){
jQuery(this.view).attr('style', "").css(styleValue);
});
}
};
///////////////////////
// RepeaterUpdater
///////////////////////
function RepeaterUpdater(view, repeaterExpression, template, prefix) {
this.view = view;
this.template = template;
this.prefix = prefix;
this.children = [];
var match = repeaterExpression.match(/^\s*(.+)\s+in\s+(.*)\s*$/);
if (! match) {
throw "Expected ng-repeat in form of 'item in collection' but got '" +
repeaterExpression + "'.";
}
var keyValue = match[1];
this.iteratorExp = match[2];
match = keyValue.match(/^([\$\w]+)|\(([\$\w]+)\s*,\s*([\$\w]+)\)$/);
if (!match) {
throw "'item' in 'item in collection' should be identifier or (key, value) but get '" +
keyValue + "'.";
}
this.valueExp = match[3] || match[1];
this.keyExp = match[2];
};
RepeaterUpdater.prototype = {
updateModel: noop,
updateView: function(scope) {
scope.evalWidget(this, this.iteratorExp, {}, function(iterator){
var self = this;
if (!iterator) {
iterator = [];
if (scope.isProperty(this.iteratorExp)) {
scope.set(this.iteratorExp, iterator);
}
}
var iteratorLength = iterator.length;
var childrenLength = this.children.length;
var cursor = this.view;
var time = 0;
var child = null;
var keyExp = this.keyExp;
var valueExp = this.valueExp;
var i = 0;
foreach(iterator, function(value, key){
if (i < childrenLength) {
// reuse children
child = self.children[i];
child.scope.set(valueExp, value);
} else {
// grow children
var name = self.prefix +
valueExp + " in " + self.iteratorExp + "[" + i + "]";
var childScope = new Scope(scope.state, name);
childScope.set('$index', i);
if (keyExp)
childScope.set(keyExp, key);
childScope.set(valueExp, value);
child = { scope:childScope, element:self.template(childScope, self.prefix, i) };
cursor.after(child.element);
self.children.push(child);
}
cursor = child.element;
var s = new Date().getTime();
child.scope.updateView();
time += new Date().getTime() - s;
i++;
});
// shrink children
for ( var r = childrenLength; r > iteratorLength; --r) {
var unneeded = this.children.pop().element[0];
unneeded.parentNode.removeChild(unneeded);
}
// Special case for option in select
if (child && child.element[0].nodeName === "OPTION") {
var select = jQuery(child.element[0].parentNode);
var cntl = select.data('controller');
if (cntl) {
cntl.lastValue = undefined;
cntl.updateView(scope);
}
}
});
}
};
//////////////////////////////////
// PopUp
//////////////////////////////////
function PopUp(doc) {
this.doc = doc;
};
PopUp.OUT_EVENT = "mouseleave mouseout click dblclick keypress keyup";
PopUp.onOver = function(e) {
PopUp.onOut();
var jNode = jQuery(this);
jNode.bind(PopUp.OUT_EVENT, PopUp.onOut);
var position = jNode.position();
var de = document.documentElement;
var w = self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
var hasArea = w - position.left;
var width = 300;
var title = jNode.hasClass("ng-exception") ? "EXCEPTION:" : "Validation error...";
var msg = jNode.attr("ng-error");
var x;
var arrowPos = hasArea>(width+75) ? "left" : "right";
var tip = jQuery(
"<div id='ng-callout' style='width:"+width+"px'>" +
"<div class='ng-arrow-"+arrowPos+"'/>" +
"<div class='ng-title'>"+title+"</div>" +
"<div class='ng-content'>"+msg+"</div>" +
"</div>");
jQuery("body").append(tip);
if(arrowPos === 'left'){
x = position.left + this.offsetWidth + 11;
}else{
x = position.left - (width + 15);
tip.find('.ng-arrow-right').css({left:width+1});
}
tip.css({left: x+"px", top: (position.top - 3)+"px"});
return true;
};
PopUp.onOut = function() {
jQuery('#ng-callout').
unbind(PopUp.OUT_EVENT, PopUp.onOut).
remove();
return true;
};
PopUp.prototype = {
bind: function () {
var self = this;
this.doc.find('.ng-validation-error,.ng-exception').
live("mouseover", PopUp.onOver);
}
};
//////////////////////////////////
// Status
//////////////////////////////////
function Status(body) {
this.loader = body.append(Status.DOM).find("#ng-loading");
this.requestCount = 0;
};
Status.DOM ='<div id="ng-spacer"></div><div id="ng-loading">loading....</div>';
Status.prototype = {
beginRequest: function () {
if (this.requestCount === 0) {
this.loader.show();
}
this.requestCount++;
},
endRequest: function () {
this.requestCount--;
if (this.requestCount === 0) {
this.loader.hide("fold");
}
}
};