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Code Issues Releases Wiki Activity

[backbone] Merge lj's work

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This commit is contained in:
Daniel Pan
2015-01-25 18:47:42 +08:00
parent 700dc2bf1d
commit 254357c3f1
23 changed files with 1501 additions and 401 deletions
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393
media/scripts/lib/backbone.js
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@@ -1,19 +1,35 @@
// Backbone.js 1.0.0
// Backbone.js 1.1.2
// (c) 2010-2013 Jeremy Ashkenas, DocumentCloud Inc.
// (c) 2010-2014 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
// Backbone may be freely distributed under the MIT license.
// For all details and documentation:
// http://backbonejs.org
(function(){
(function(root, factory) {
// Set up Backbone appropriately for the environment. Start with AMD.
if (typeof define === 'function' && define.amd) {
define(['underscore', 'jquery', 'exports'], function(_, $, exports) {
// Export global even in AMD case in case this script is loaded with
// others that may still expect a global Backbone.
root.Backbone = factory(root, exports, _, $);
});
// Next for Node.js or CommonJS. jQuery may not be needed as a module.
} else if (typeof exports !== 'undefined') {
var _ = require('underscore');
factory(root, exports, _);
// Finally, as a browser global.
} else {
root.Backbone = factory(root, {}, root._, (root.jQuery || root.Zepto || root.ender || root.$));
}
}(this, function(root, Backbone, _, $) {
// Initial Setup
// -------------
// Save a reference to the global object (`window` in the browser, `exports`
// on the server).
var root = this;
// Save the previous value of the `Backbone` variable, so that it can be
// restored later on, if `noConflict` is used.
var previousBackbone = root.Backbone;
@@ -24,25 +40,12 @@
var slice = array.slice;
var splice = array.splice;
// The top-level namespace. All public Backbone classes and modules will
// be attached to this. Exported for both the browser and the server.
var Backbone;
if (typeof exports !== 'undefined') {
Backbone = exports;
} else {
Backbone = root.Backbone = {};
}
// Current version of the library. Keep in sync with `package.json`.
Backbone.VERSION = '1.0.0';
// Require Underscore, if we're on the server, and it's not already present.
var _ = root._;
if (!_ && (typeof require !== 'undefined')) _ = require('underscore');
Backbone.VERSION = '1.1.2';
// For Backbone's purposes, jQuery, Zepto, Ender, or My Library (kidding) owns
// the `$` variable.
Backbone.$ = root.jQuery || root.Zepto || root.ender || root.$;
Backbone.$ = $;
// Runs Backbone.js in *noConflict* mode, returning the `Backbone` variable
// to its previous owner. Returns a reference to this Backbone object.
@@ -52,7 +55,7 @@
};
// Turn on `emulateHTTP` to support legacy HTTP servers. Setting this option
// will fake `"PUT"` and `"DELETE"` requests via the `_method` parameter and
// will fake `"PATCH"`, `"PUT"` and `"DELETE"` requests via the `_method` parameter and
// set a `X-Http-Method-Override` header.
Backbone.emulateHTTP = false;
@@ -108,10 +111,9 @@
var retain, ev, events, names, i, l, j, k;
if (!this._events || !eventsApi(this, 'off', name, [callback, context])) return this;
if (!name && !callback && !context) {
this._events = {};
this._events = void 0;
return this;
}
names = name ? [name] : _.keys(this._events);
for (i = 0, l = names.length; i < l; i++) {
name = names[i];
@@ -151,14 +153,15 @@
// Tell this object to stop listening to either specific events ... or
// to every object it's currently listening to.
stopListening: function(obj, name, callback) {
var listeners = this._listeners;
if (!listeners) return this;
var deleteListener = !name && !callback;
if (typeof name === 'object') callback = this;
if (obj) (listeners = {})[obj._listenerId] = obj;
for (var id in listeners) {
listeners[id].off(name, callback, this);
if (deleteListener) delete this._listeners[id];
var listeningTo = this._listeningTo;
if (!listeningTo) return this;
var remove = !name && !callback;
if (!callback && typeof name === 'object') callback = this;
if (obj) (listeningTo = {})[obj._listenId] = obj;
for (var id in listeningTo) {
obj = listeningTo[id];
obj.off(name, callback, this);
if (remove || _.isEmpty(obj._events)) delete this._listeningTo[id];
}
return this;
}
@@ -204,7 +207,7 @@
case 1: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1); return;
case 2: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2); return;
case 3: while (++i < l) (ev = events[i]).callback.call(ev.ctx, a1, a2, a3); return;
default: while (++i < l) (ev = events[i]).callback.apply(ev.ctx, args);
default: while (++i < l) (ev = events[i]).callback.apply(ev.ctx, args); return;
}
};
@@ -215,10 +218,10 @@
// listening to.
_.each(listenMethods, function(implementation, method) {
Events[method] = function(obj, name, callback) {
var listeners = this._listeners || (this._listeners = {});
var id = obj._listenerId || (obj._listenerId = _.uniqueId('l'));
listeners[id] = obj;
if (typeof name === 'object') callback = this;
var listeningTo = this._listeningTo || (this._listeningTo = {});
var id = obj._listenId || (obj._listenId = _.uniqueId('l'));
listeningTo[id] = obj;
if (!callback && typeof name === 'object') callback = this;
obj[implementation](name, callback, this);
return this;
};
@@ -243,24 +246,18 @@
// Create a new model with the specified attributes. A client id (`cid`)
// is automatically generated and assigned for you.
var Model = Backbone.Model = function(attributes, options) {
var defaults;
var attrs = attributes || {};
options || (options = {});
this.cid = _.uniqueId('c');
this.attributes = {};
_.extend(this, _.pick(options, modelOptions));
if (options.collection) this.collection = options.collection;
if (options.parse) attrs = this.parse(attrs, options) || {};
if (defaults = _.result(this, 'defaults')) {
attrs = _.defaults({}, attrs, defaults);
}
attrs = _.defaults({}, attrs, _.result(this, 'defaults'));
this.set(attrs, options);
this.changed = {};
this.initialize.apply(this, arguments);
};
// A list of options to be attached directly to the model, if provided.
var modelOptions = ['url', 'urlRoot', 'collection'];
// Attach all inheritable methods to the Model prototype.
_.extend(Model.prototype, Events, {
@@ -355,7 +352,7 @@
// Trigger all relevant attribute changes.
if (!silent) {
if (changes.length) this._pending = true;
if (changes.length) this._pending = options;
for (var i = 0, l = changes.length; i < l; i++) {
this.trigger('change:' + changes[i], this, current[changes[i]], options);
}
@@ -366,6 +363,7 @@
if (changing) return this;
if (!silent) {
while (this._pending) {
options = this._pending;
this._pending = false;
this.trigger('change', this, options);
}
@@ -456,13 +454,16 @@
(attrs = {})[key] = val;
}
// If we're not waiting and attributes exist, save acts as `set(attr).save(null, opts)`.
if (attrs && (!options || !options.wait) && !this.set(attrs, options)) return false;
options = _.extend({validate: true}, options);
// Do not persist invalid models.
if (!this._validate(attrs, options)) return false;
// If we're not waiting and attributes exist, save acts as
// `set(attr).save(null, opts)` with validation. Otherwise, check if
// the model will be valid when the attributes, if any, are set.
if (attrs && !options.wait) {
if (!this.set(attrs, options)) return false;
} else {
if (!this._validate(attrs, options)) return false;
}
// Set temporary attributes if `{wait: true}`.
if (attrs && options.wait) {
@@ -530,9 +531,12 @@
// using Backbone's restful methods, override this to change the endpoint
// that will be called.
url: function() {
var base = _.result(this, 'urlRoot') || _.result(this.collection, 'url') || urlError();
var base =
_.result(this, 'urlRoot') ||
_.result(this.collection, 'url') ||
urlError();
if (this.isNew()) return base;
return base + (base.charAt(base.length - 1) === '/' ? '' : '/') + encodeURIComponent(this.id);
return base.replace(/([^\/])$/, '$1/') + encodeURIComponent(this.id);
},
// **parse** converts a response into the hash of attributes to be `set` on
@@ -548,7 +552,7 @@
// A model is new if it has never been saved to the server, and lacks an id.
isNew: function() {
return this.id == null;
return !this.has(this.idAttribute);
},
// Check if the model is currently in a valid state.
@@ -563,7 +567,7 @@
attrs = _.extend({}, this.attributes, attrs);
var error = this.validationError = this.validate(attrs, options) || null;
if (!error) return true;
this.trigger('invalid', this, error, _.extend(options || {}, {validationError: error}));
this.trigger('invalid', this, error, _.extend(options, {validationError: error}));
return false;
}
@@ -596,7 +600,6 @@
// its models in sort order, as they're added and removed.
var Collection = Backbone.Collection = function(models, options) {
options || (options = {});
if (options.url) this.url = options.url;
if (options.model) this.model = options.model;
if (options.comparator !== void 0) this.comparator = options.comparator;
this._reset();
@@ -606,7 +609,7 @@
// Default options for `Collection#set`.
var setOptions = {add: true, remove: true, merge: true};
var addOptions = {add: true, merge: false, remove: false};
var addOptions = {add: true, remove: false};
// Define the Collection's inheritable methods.
_.extend(Collection.prototype, Events, {
@@ -632,16 +635,17 @@
// Add a model, or list of models to the set.
add: function(models, options) {
return this.set(models, _.defaults(options || {}, addOptions));
return this.set(models, _.extend({merge: false}, options, addOptions));
},
// Remove a model, or a list of models from the set.
remove: function(models, options) {
models = _.isArray(models) ? models.slice() : [models];
var singular = !_.isArray(models);
models = singular ? [models] : _.clone(models);
options || (options = {});
var i, l, index, model;
for (i = 0, l = models.length; i < l; i++) {
model = this.get(models[i]);
model = models[i] = this.get(models[i]);
if (!model) continue;
delete this._byId[model.id];
delete this._byId[model.cid];
@@ -652,9 +656,9 @@
options.index = index;
model.trigger('remove', model, this, options);
}
this._removeReference(model);
this._removeReference(model, options);
}
return this;
return singular ? models[0] : models;
},
// Update a collection by `set`-ing a new list of models, adding new ones,
@@ -662,43 +666,57 @@
// already exist in the collection, as necessary. Similar to **Model#set**,
// the core operation for updating the data contained by the collection.
set: function(models, options) {
options = _.defaults(options || {}, setOptions);
options = _.defaults({}, options, setOptions);
if (options.parse) models = this.parse(models, options);
if (!_.isArray(models)) models = models ? [models] : [];
var i, l, model, attrs, existing, sort;
var singular = !_.isArray(models);
models = singular ? (models ? [models] : []) : _.clone(models);
var i, l, id, model, attrs, existing, sort;
var at = options.at;
var targetModel = this.model;
var sortable = this.comparator && (at == null) && options.sort !== false;
var sortAttr = _.isString(this.comparator) ? this.comparator : null;
var toAdd = [], toRemove = [], modelMap = {};
var add = options.add, merge = options.merge, remove = options.remove;
var order = !sortable && add && remove ? [] : false;
// Turn bare objects into model references, and prevent invalid models
// from being added.
for (i = 0, l = models.length; i < l; i++) {
if (!(model = this._prepareModel(models[i], options))) continue;
attrs = models[i] || {};
if (attrs instanceof Model) {
id = model = attrs;
} else {
id = attrs[targetModel.prototype.idAttribute || 'id'];
}
// If a duplicate is found, prevent it from being added and
// optionally merge it into the existing model.
if (existing = this.get(model)) {
if (options.remove) modelMap[existing.cid] = true;
if (options.merge) {
existing.set(model.attributes, options);
if (existing = this.get(id)) {
if (remove) modelMap[existing.cid] = true;
if (merge) {
attrs = attrs === model ? model.attributes : attrs;
if (options.parse) attrs = existing.parse(attrs, options);
existing.set(attrs, options);
if (sortable && !sort && existing.hasChanged(sortAttr)) sort = true;
}
models[i] = existing;
// This is a new model, push it to the `toAdd` list.
} else if (options.add) {
// If this is a new, valid model, push it to the `toAdd` list.
} else if (add) {
model = models[i] = this._prepareModel(attrs, options);
if (!model) continue;
toAdd.push(model);
// Listen to added models' events, and index models for lookup by
// `id` and by `cid`.
model.on('all', this._onModelEvent, this);
this._byId[model.cid] = model;
if (model.id != null) this._byId[model.id] = model;
this._addReference(model, options);
}
// Do not add multiple models with the same `id`.
model = existing || model;
if (order && (model.isNew() || !modelMap[model.id])) order.push(model);
modelMap[model.id] = true;
}
// Remove nonexistent models if appropriate.
if (options.remove) {
if (remove) {
for (i = 0, l = this.length; i < l; ++i) {
if (!modelMap[(model = this.models[i]).cid]) toRemove.push(model);
}
@@ -706,29 +724,35 @@
}
// See if sorting is needed, update `length` and splice in new models.
if (toAdd.length) {
if (toAdd.length || (order && order.length)) {
if (sortable) sort = true;
this.length += toAdd.length;
if (at != null) {
splice.apply(this.models, [at, 0].concat(toAdd));
for (i = 0, l = toAdd.length; i < l; i++) {
this.models.splice(at + i, 0, toAdd[i]);
}
} else {
push.apply(this.models, toAdd);
if (order) this.models.length = 0;
var orderedModels = order || toAdd;
for (i = 0, l = orderedModels.length; i < l; i++) {
this.models.push(orderedModels[i]);
}
}
}
// Silently sort the collection if appropriate.
if (sort) this.sort({silent: true});
if (options.silent) return this;
// Trigger `add` events.
for (i = 0, l = toAdd.length; i < l; i++) {
(model = toAdd[i]).trigger('add', model, this, options);
// Unless silenced, it's time to fire all appropriate add/sort events.
if (!options.silent) {
for (i = 0, l = toAdd.length; i < l; i++) {
(model = toAdd[i]).trigger('add', model, this, options);
}
if (sort || (order && order.length)) this.trigger('sort', this, options);
}
// Trigger `sort` if the collection was sorted.
if (sort) this.trigger('sort', this, options);
return this;
// Return the added (or merged) model (or models).
return singular ? models[0] : models;
},
// When you have more items than you want to add or remove individually,
@@ -738,20 +762,18 @@
reset: function(models, options) {
options || (options = {});
for (var i = 0, l = this.models.length; i < l; i++) {
this._removeReference(this.models[i]);
this._removeReference(this.models[i], options);
}
options.previousModels = this.models;
this._reset();
this.add(models, _.extend({silent: true}, options));
models = this.add(models, _.extend({silent: true}, options));
if (!options.silent) this.trigger('reset', this, options);
return this;
return models;
},
// Add a model to the end of the collection.
push: function(model, options) {
model = this._prepareModel(model, options);
this.add(model, _.extend({at: this.length}, options));
return model;
return this.add(model, _.extend({at: this.length}, options));
},
// Remove a model from the end of the collection.
@@ -763,9 +785,7 @@
// Add a model to the beginning of the collection.
unshift: function(model, options) {
model = this._prepareModel(model, options);
this.add(model, _.extend({at: 0}, options));
return model;
return this.add(model, _.extend({at: 0}, options));
},
// Remove a model from the beginning of the collection.
@@ -776,14 +796,14 @@
},
// Slice out a sub-array of models from the collection.
slice: function(begin, end) {
return this.models.slice(begin, end);
slice: function() {
return slice.apply(this.models, arguments);
},
// Get a model from the set by id.
get: function(obj) {
if (obj == null) return void 0;
return this._byId[obj.id != null ? obj.id : obj.cid || obj];
return this._byId[obj] || this._byId[obj.id] || this._byId[obj.cid];
},
// Get the model at the given index.
@@ -827,16 +847,6 @@
return this;
},
// Figure out the smallest index at which a model should be inserted so as
// to maintain order.
sortedIndex: function(model, value, context) {
value || (value = this.comparator);
var iterator = _.isFunction(value) ? value : function(model) {
return model.get(value);
};
return _.sortedIndex(this.models, model, iterator, context);
},
// Pluck an attribute from each model in the collection.
pluck: function(attr) {
return _.invoke(this.models, 'get', attr);
@@ -869,7 +879,7 @@
if (!options.wait) this.add(model, options);
var collection = this;
var success = options.success;
options.success = function(resp) {
options.success = function(model, resp) {
if (options.wait) collection.add(model, options);
if (success) success(model, resp, options);
};
@@ -899,22 +909,25 @@
// Prepare a hash of attributes (or other model) to be added to this
// collection.
_prepareModel: function(attrs, options) {
if (attrs instanceof Model) {
if (!attrs.collection) attrs.collection = this;
return attrs;
}
options || (options = {});
if (attrs instanceof Model) return attrs;
options = options ? _.clone(options) : {};
options.collection = this;
var model = new this.model(attrs, options);
if (!model._validate(attrs, options)) {
this.trigger('invalid', this, attrs, options);
return false;
}
return model;
if (!model.validationError) return model;
this.trigger('invalid', this, model.validationError, options);
return false;
},
// Internal method to create a model's ties to a collection.
_addReference: function(model, options) {
this._byId[model.cid] = model;
if (model.id != null) this._byId[model.id] = model;
if (!model.collection) model.collection = this;
model.on('all', this._onModelEvent, this);
},
// Internal method to sever a model's ties to a collection.
_removeReference: function(model) {
_removeReference: function(model, options) {
if (this === model.collection) delete model.collection;
model.off('all', this._onModelEvent, this);
},
@@ -942,8 +955,8 @@
'inject', 'reduceRight', 'foldr', 'find', 'detect', 'filter', 'select',
'reject', 'every', 'all', 'some', 'any', 'include', 'contains', 'invoke',
'max', 'min', 'toArray', 'size', 'first', 'head', 'take', 'initial', 'rest',
'tail', 'drop', 'last', 'without', 'indexOf', 'shuffle', 'lastIndexOf',
'isEmpty', 'chain'];
'tail', 'drop', 'last', 'without', 'difference', 'indexOf', 'shuffle',
'lastIndexOf', 'isEmpty', 'chain', 'sample'];
// Mix in each Underscore method as a proxy to `Collection#models`.
_.each(methods, function(method) {
@@ -955,7 +968,7 @@
});
// Underscore methods that take a property name as an argument.
var attributeMethods = ['groupBy', 'countBy', 'sortBy'];
var attributeMethods = ['groupBy', 'countBy', 'sortBy', 'indexBy'];
// Use attributes instead of properties.
_.each(attributeMethods, function(method) {
@@ -982,7 +995,8 @@
// if an existing element is not provided...
var View = Backbone.View = function(options) {
this.cid = _.uniqueId('view');
this._configure(options || {});
options || (options = {});
_.extend(this, _.pick(options, viewOptions));
this._ensureElement();
this.initialize.apply(this, arguments);
this.delegateEvents();
@@ -1001,7 +1015,7 @@
tagName: 'div',
// jQuery delegate for element lookup, scoped to DOM elements within the
// current view. This should be prefered to global lookups where possible.
// current view. This should be preferred to global lookups where possible.
$: function(selector) {
return this.$el.find(selector);
},
@@ -1041,7 +1055,7 @@
//
// {
// 'mousedown .title': 'edit',
// 'click .button': 'save'
// 'click .button': 'save',
// 'click .open': function(e) { ... }
// }
//
@@ -1079,16 +1093,6 @@
return this;
},
// Performs the initial configuration of a View with a set of options.
// Keys with special meaning *(e.g. model, collection, id, className)* are
// attached directly to the view. See `viewOptions` for an exhaustive
// list.
_configure: function(options) {
if (this.options) options = _.extend({}, _.result(this, 'options'), options);
_.extend(this, _.pick(options, viewOptions));
this.options = options;
},
// Ensure that the View has a DOM element to render into.
// If `this.el` is a string, pass it through `$()`, take the first
// matching element, and re-assign it to `el`. Otherwise, create
@@ -1174,8 +1178,7 @@
// If we're sending a `PATCH` request, and we're in an old Internet Explorer
// that still has ActiveX enabled by default, override jQuery to use that
// for XHR instead. Remove this line when jQuery supports `PATCH` on IE8.
if (params.type === 'PATCH' && window.ActiveXObject &&
!(window.external && window.external.msActiveXFilteringEnabled)) {
if (params.type === 'PATCH' && noXhrPatch) {
params.xhr = function() {
return new ActiveXObject("Microsoft.XMLHTTP");
};
@@ -1187,6 +1190,10 @@
return xhr;
};
var noXhrPatch =
typeof window !== 'undefined' && !!window.ActiveXObject &&
!(window.XMLHttpRequest && (new XMLHttpRequest).dispatchEvent);
// Map from CRUD to HTTP for our default `Backbone.sync` implementation.
var methodMap = {
'create': 'POST',
@@ -1244,7 +1251,7 @@
var router = this;
Backbone.history.route(route, function(fragment) {
var args = router._extractParameters(route, fragment);
callback && callback.apply(router, args);
router.execute(callback, args);
router.trigger.apply(router, ['route:' + name].concat(args));
router.trigger('route', name, args);
Backbone.history.trigger('route', router, name, args);
@@ -1252,6 +1259,12 @@
return this;
},
// Execute a route handler with the provided parameters. This is an
// excellent place to do pre-route setup or post-route cleanup.
execute: function(callback, args) {
if (callback) callback.apply(this, args);
},
// Simple proxy to `Backbone.history` to save a fragment into the history.
navigate: function(fragment, options) {
Backbone.history.navigate(fragment, options);
@@ -1275,11 +1288,11 @@
_routeToRegExp: function(route) {
route = route.replace(escapeRegExp, '\\$&')
.replace(optionalParam, '(?:$1)?')
.replace(namedParam, function(match, optional){
return optional ? match : '([^\/]+)';
.replace(namedParam, function(match, optional) {
return optional ? match : '([^/?]+)';
})
.replace(splatParam, '(.*?)');
return new RegExp('^' + route + '$');
.replace(splatParam, '([^?]*?)');
return new RegExp('^' + route + '(?:\\?([\\s\\S]*))?$');
},
// Given a route, and a URL fragment that it matches, return the array of
@@ -1287,7 +1300,9 @@
// treated as `null` to normalize cross-browser behavior.
_extractParameters: function(route, fragment) {
var params = route.exec(fragment).slice(1);
return _.map(params, function(param) {
return _.map(params, function(param, i) {
// Don't decode the search params.
if (i === params.length - 1) return param || null;
return param ? decodeURIComponent(param) : null;
});
}
@@ -1325,6 +1340,9 @@
// Cached regex for removing a trailing slash.
var trailingSlash = /\/$/;
// Cached regex for stripping urls of hash.
var pathStripper = /#.*$/;
// Has the history handling already been started?
History.started = false;
@@ -1335,6 +1353,11 @@
// twenty times a second.
interval: 50,
// Are we at the app root?
atRoot: function() {
return this.location.pathname.replace(/[^\/]$/, '$&/') === this.root;
},
// Gets the true hash value. Cannot use location.hash directly due to bug
// in Firefox where location.hash will always be decoded.
getHash: function(window) {
@@ -1347,9 +1370,9 @@
getFragment: function(fragment, forcePushState) {
if (fragment == null) {
if (this._hasPushState || !this._wantsHashChange || forcePushState) {
fragment = this.location.pathname;
fragment = decodeURI(this.location.pathname + this.location.search);
var root = this.root.replace(trailingSlash, '');
if (!fragment.indexOf(root)) fragment = fragment.substr(root.length);
if (!fragment.indexOf(root)) fragment = fragment.slice(root.length);
} else {
fragment = this.getHash();
}
@@ -1365,7 +1388,7 @@
// Figure out the initial configuration. Do we need an iframe?
// Is pushState desired ... is it available?
this.options = _.extend({}, {root: '/'}, this.options, options);
this.options = _.extend({root: '/'}, this.options, options);
this.root = this.options.root;
this._wantsHashChange = this.options.hashChange !== false;
this._wantsPushState = !!this.options.pushState;
@@ -1378,7 +1401,8 @@
this.root = ('/' + this.root + '/').replace(rootStripper, '/');
if (oldIE && this._wantsHashChange) {
this.iframe = Backbone.$('<iframe src="javascript:0" tabindex="-1" />').hide().appendTo('body')[0].contentWindow;
var frame = Backbone.$('<iframe src="javascript:0" tabindex="-1">');
this.iframe = frame.hide().appendTo('body')[0].contentWindow;
this.navigate(fragment);
}
@@ -1396,21 +1420,26 @@
// opened by a non-pushState browser.
this.fragment = fragment;
var loc = this.location;
var atRoot = loc.pathname.replace(/[^\/]$/, '$&/') === this.root;
// If we've started off with a route from a `pushState`-enabled browser,
// but we're currently in a browser that doesn't support it...
if (this._wantsHashChange && this._wantsPushState && !this._hasPushState && !atRoot) {
this.fragment = this.getFragment(null, true);
this.location.replace(this.root + this.location.search + '#' + this.fragment);
// Return immediately as browser will do redirect to new url
return true;
// Transition from hashChange to pushState or vice versa if both are
// requested.
if (this._wantsHashChange && this._wantsPushState) {
// If we've started off with a route from a `pushState`-enabled
// browser, but we're currently in a browser that doesn't support it...
if (!this._hasPushState && !this.atRoot()) {
this.fragment = this.getFragment(null, true);
this.location.replace(this.root + '#' + this.fragment);
// Return immediately as browser will do redirect to new url
return true;
// Or if we've started out with a hash-based route, but we're currently
// in a browser where it could be `pushState`-based instead...
} else if (this._hasPushState && this.atRoot() && loc.hash) {
this.fragment = this.getHash().replace(routeStripper, '');
this.history.replaceState({}, document.title, this.root + this.fragment);
}
// Or if we've started out with a hash-based route, but we're currently
// in a browser where it could be `pushState`-based instead...
} else if (this._wantsPushState && this._hasPushState && atRoot && loc.hash) {
this.fragment = this.getHash().replace(routeStripper, '');
this.history.replaceState({}, document.title, this.root + this.fragment + loc.search);
}
if (!this.options.silent) return this.loadUrl();
@@ -1420,7 +1449,7 @@
// but possibly useful for unit testing Routers.
stop: function() {
Backbone.$(window).off('popstate', this.checkUrl).off('hashchange', this.checkUrl);
clearInterval(this._checkUrlInterval);
if (this._checkUrlInterval) clearInterval(this._checkUrlInterval);
History.started = false;
},
@@ -1439,21 +1468,20 @@
}
if (current === this.fragment) return false;
if (this.iframe) this.navigate(current);
this.loadUrl() || this.loadUrl(this.getHash());
this.loadUrl();
},
// Attempt to load the current URL fragment. If a route succeeds with a
// match, returns `true`. If no defined routes matches the fragment,
// returns `false`.
loadUrl: function(fragmentOverride) {
var fragment = this.fragment = this.getFragment(fragmentOverride);
var matched = _.any(this.handlers, function(handler) {
loadUrl: function(fragment) {
fragment = this.fragment = this.getFragment(fragment);
return _.any(this.handlers, function(handler) {
if (handler.route.test(fragment)) {
handler.callback(fragment);
return true;
}
});
return matched;
},
// Save a fragment into the hash history, or replace the URL state if the
@@ -1465,11 +1493,18 @@
// you wish to modify the current URL without adding an entry to the history.
navigate: function(fragment, options) {
if (!History.started) return false;
if (!options || options === true) options = {trigger: options};
fragment = this.getFragment(fragment || '');
if (!options || options === true) options = {trigger: !!options};
var url = this.root + (fragment = this.getFragment(fragment || ''));
// Strip the hash for matching.
fragment = fragment.replace(pathStripper, '');
if (this.fragment === fragment) return;
this.fragment = fragment;
var url = this.root + fragment;
// Don't include a trailing slash on the root.
if (fragment === '' && url !== '/') url = url.slice(0, -1);
// If pushState is available, we use it to set the fragment as a real URL.
if (this._hasPushState) {
@@ -1492,7 +1527,7 @@
} else {
return this.location.assign(url);
}
if (options.trigger) this.loadUrl(fragment);
if (options.trigger) return this.loadUrl(fragment);
},
// Update the hash location, either replacing the current entry, or adding
@@ -1560,7 +1595,7 @@
};
// Wrap an optional error callback with a fallback error event.
var wrapError = function (model, options) {
var wrapError = function(model, options) {
var error = options.error;
options.error = function(resp) {
if (error) error(model, resp, options);
@@ -1568,4 +1603,6 @@
};
};
}).call(this);
return Backbone;
}));