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window.wp = window.wp || {}; |
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(function($) { |
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var revisions; |
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revisions = wp.revisions = { model: {}, view: {}, controller: {} }; |
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// Link settings. |
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revisions.settings = _.isUndefined( _wpRevisionsSettings ) ? {} : _wpRevisionsSettings; |
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// For debugging |
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revisions.debug = false; |
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revisions.log = function() { |
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if ( window.console && revisions.debug ) |
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console.log.apply( console, arguments ); |
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}; |
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// Handy functions to help with positioning |
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$.fn.allOffsets = function() { |
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var offset = this.offset() || {top: 0, left: 0}, win = $(window); |
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return _.extend( offset, { |
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right: win.width() - offset.left - this.outerWidth(), |
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bottom: win.height() - offset.top - this.outerHeight() |
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}); |
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}; |
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$.fn.allPositions = function() { |
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var position = this.position() || {top: 0, left: 0}, parent = this.parent(); |
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return _.extend( position, { |
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right: parent.outerWidth() - position.left - this.outerWidth(), |
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bottom: parent.outerHeight() - position.top - this.outerHeight() |
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}); |
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}; |
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// wp_localize_script transforms top-level numbers into strings. Undo that. |
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if ( revisions.settings.to ) |
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revisions.settings.to = parseInt( revisions.settings.to, 10 ); |
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if ( revisions.settings.from ) |
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revisions.settings.from = parseInt( revisions.settings.from, 10 ); |
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// wp_localize_script does not allow for top-level booleans. Fix that. |
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if ( revisions.settings.compareTwoMode ) |
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revisions.settings.compareTwoMode = revisions.settings.compareTwoMode === '1'; |
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/** |
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* ======================================================================== |
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* MODELS |
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* ======================================================================== |
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*/ |
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revisions.model.Slider = Backbone.Model.extend({ |
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defaults: { |
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value: null, |
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values: null, |
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min: 0, |
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max: 1, |
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step: 1, |
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range: false, |
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compareTwoMode: false |
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}, |
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initialize: function( options ) { |
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this.frame = options.frame; |
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this.revisions = options.revisions; |
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// Listen for changes to the revisions or mode from outside |
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this.listenTo( this.frame, 'update:revisions', this.receiveRevisions ); |
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this.listenTo( this.frame, 'change:compareTwoMode', this.updateMode ); |
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// Listen for internal changes |
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this.listenTo( this, 'change:from', this.handleLocalChanges ); |
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this.listenTo( this, 'change:to', this.handleLocalChanges ); |
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this.listenTo( this, 'change:compareTwoMode', this.updateSliderSettings ); |
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this.listenTo( this, 'update:revisions', this.updateSliderSettings ); |
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// Listen for changes to the hovered revision |
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this.listenTo( this, 'change:hoveredRevision', this.hoverRevision ); |
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this.set({ |
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max: this.revisions.length - 1, |
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compareTwoMode: this.frame.get('compareTwoMode'), |
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from: this.frame.get('from'), |
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to: this.frame.get('to') |
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}); |
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this.updateSliderSettings(); |
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}, |
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getSliderValue: function( a, b ) { |
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return isRtl ? this.revisions.length - this.revisions.indexOf( this.get(a) ) - 1 : this.revisions.indexOf( this.get(b) ); |
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}, |
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updateSliderSettings: function() { |
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if ( this.get('compareTwoMode') ) { |
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this.set({ |
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values: [ |
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this.getSliderValue( 'to', 'from' ), |
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this.getSliderValue( 'from', 'to' ) |
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], |
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value: null, |
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range: true // ensures handles cannot cross |
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}); |
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} else { |
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this.set({ |
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value: this.getSliderValue( 'to', 'to' ), |
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values: null, |
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range: false |
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}); |
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} |
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this.trigger( 'update:slider' ); |
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}, |
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// Called when a revision is hovered |
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hoverRevision: function( model, value ) { |
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this.trigger( 'hovered:revision', value ); |
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}, |
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// Called when `compareTwoMode` changes |
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updateMode: function( model, value ) { |
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this.set({ compareTwoMode: value }); |
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}, |
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// Called when `from` or `to` changes in the local model |
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handleLocalChanges: function() { |
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this.frame.set({ |
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from: this.get('from'), |
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to: this.get('to') |
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}); |
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}, |
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// Receives revisions changes from outside the model |
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receiveRevisions: function( from, to ) { |
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// Bail if nothing changed |
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if ( this.get('from') === from && this.get('to') === to ) |
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return; |
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this.set({ from: from, to: to }, { silent: true }); |
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this.trigger( 'update:revisions', from, to ); |
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} |
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}); |
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revisions.model.Tooltip = Backbone.Model.extend({ |
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defaults: { |
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revision: null, |
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offset: {}, |
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hovering: false, // Whether the mouse is hovering |
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scrubbing: false // Whether the mouse is scrubbing |
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}, |
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initialize: function( options ) { |
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this.frame = options.frame; |
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this.revisions = options.revisions; |
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this.slider = options.slider; |
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this.listenTo( this.slider, 'hovered:revision', this.updateRevision ); |
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this.listenTo( this.slider, 'change:hovering', this.setHovering ); |
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this.listenTo( this.slider, 'change:scrubbing', this.setScrubbing ); |
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}, |
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updateRevision: function( revision ) { |
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this.set({ revision: revision }); |
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}, |
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setHovering: function( model, value ) { |
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this.set({ hovering: value }); |
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}, |
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setScrubbing: function( model, value ) { |
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this.set({ scrubbing: value }); |
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} |
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}); |
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revisions.model.Revision = Backbone.Model.extend({}); |
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revisions.model.Revisions = Backbone.Collection.extend({ |
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model: revisions.model.Revision, |
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initialize: function() { |
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_.bindAll( this, 'next', 'prev' ); |
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}, |
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next: function( revision ) { |
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var index = this.indexOf( revision ); |
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if ( index !== -1 && index !== this.length - 1 ) |
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return this.at( index + 1 ); |
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}, |
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prev: function( revision ) { |
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var index = this.indexOf( revision ); |
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if ( index !== -1 && index !== 0 ) |
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return this.at( index - 1 ); |
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} |
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}); |
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revisions.model.Field = Backbone.Model.extend({}); |
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revisions.model.Fields = Backbone.Collection.extend({ |
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model: revisions.model.Field |
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}); |
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revisions.model.Diff = Backbone.Model.extend({ |
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initialize: function( attributes, options ) { |
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var fields = this.get('fields'); |
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this.unset('fields'); |
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this.fields = new revisions.model.Fields( fields ); |
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} |
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}); |
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revisions.model.Diffs = Backbone.Collection.extend({ |
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initialize: function( models, options ) { |
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_.bindAll( this, 'getClosestUnloaded' ); |
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this.loadAll = _.once( this._loadAll ); |
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this.revisions = options.revisions; |
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this.requests = {}; |
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}, |
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model: revisions.model.Diff, |
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ensure: function( id, context ) { |
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var diff = this.get( id ); |
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var request = this.requests[ id ]; |
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var deferred = $.Deferred(); |
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var ids = {}; |
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var from = id.split(':')[0]; |
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var to = id.split(':')[1]; |
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ids[id] = true; |
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wp.revisions.log( 'ensure', id ); |
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this.trigger( 'ensure', ids, from, to, deferred.promise() ); |
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if ( diff ) { |
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deferred.resolveWith( context, [ diff ] ); |
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} else { |
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this.trigger( 'ensure:load', ids, from, to, deferred.promise() ); |
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_.each( ids, _.bind( function( id ) { |
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// Remove anything that has an ongoing request |
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if ( this.requests[ id ] ) |
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delete ids[ id ]; |
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// Remove anything we already have |
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if ( this.get( id ) ) |
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delete ids[ id ]; |
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}, this ) ); |
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if ( ! request ) { |
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// Always include the ID that started this ensure |
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ids[ id ] = true; |
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request = this.load( _.keys( ids ) ); |
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} |
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request.done( _.bind( function() { |
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deferred.resolveWith( context, [ this.get( id ) ] ); |
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}, this ) ).fail( _.bind( function() { |
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deferred.reject(); |
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}) ); |
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} |
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return deferred.promise(); |
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}, |
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// Returns an array of proximal diffs |
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getClosestUnloaded: function( ids, centerId ) { |
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var self = this; |
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return _.chain([0].concat( ids )).initial().zip( ids ).sortBy( function( pair ) { |
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return Math.abs( centerId - pair[1] ); |
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}).map( function( pair ) { |
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return pair.join(':'); |
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}).filter( function( diffId ) { |
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return _.isUndefined( self.get( diffId ) ) && ! self.requests[ diffId ]; |
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}).value(); |
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}, |
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_loadAll: function( allRevisionIds, centerId, num ) { |
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var self = this, deferred = $.Deferred(); |
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diffs = _.first( this.getClosestUnloaded( allRevisionIds, centerId ), num ); |
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if ( _.size( diffs ) > 0 ) { |
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this.load( diffs ).done( function() { |
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self._loadAll( allRevisionIds, centerId, num ).done( function() { |
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deferred.resolve(); |
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}); |
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}).fail( function() { |
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if ( 1 === num ) { // Already tried 1. This just isn't working. Give up. |
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deferred.reject(); |
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} else { // Request fewer diffs this time |
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self._loadAll( allRevisionIds, centerId, Math.ceil( num / 2 ) ).done( function() { |
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deferred.resolve(); |
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}); |
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} |
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}); |
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} else { |
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deferred.resolve(); |
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} |
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return deferred; |
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}, |
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load: function( comparisons ) { |
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wp.revisions.log( 'load', comparisons ); |
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// Our collection should only ever grow, never shrink, so remove: false |
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return this.fetch({ data: { compare: comparisons }, remove: false }).done( function(){ |
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wp.revisions.log( 'load:complete', comparisons ); |
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}); |
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}, |
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sync: function( method, model, options ) { |
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if ( 'read' === method ) { |
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options = options || {}; |
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options.context = this; |
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options.data = _.extend( options.data || {}, { |
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action: 'get-revision-diffs', |
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post_id: revisions.settings.postId |
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}); |
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var deferred = wp.ajax.send( options ); |
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var requests = this.requests; |
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// Record that we're requesting each diff. |
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if ( options.data.compare ) { |
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_.each( options.data.compare, function( id ) { |
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requests[ id ] = deferred; |
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}); |
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} |
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// When the request completes, clear the stored request. |
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deferred.always( function() { |
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if ( options.data.compare ) { |
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_.each( options.data.compare, function( id ) { |
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delete requests[ id ]; |
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}); |
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} |
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}); |
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return deferred; |
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// Otherwise, fall back to `Backbone.sync()`. |
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} else { |
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return Backbone.Model.prototype.sync.apply( this, arguments ); |
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} |
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} |
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}); |
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revisions.model.FrameState = Backbone.Model.extend({ |
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defaults: { |
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loading: false, |
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error: false, |
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compareTwoMode: false |
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}, |
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initialize: function( attributes, options ) { |
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var properties = {}; |
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_.bindAll( this, 'receiveDiff' ); |
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this._debouncedEnsureDiff = _.debounce( this._ensureDiff, 200 ); |
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this.revisions = options.revisions; |
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this.diffs = new revisions.model.Diffs( [], { revisions: this.revisions }); |
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// Set the initial diffs collection provided through the settings |
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this.diffs.set( revisions.settings.diffData ); |
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// Set up internal listeners |
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this.listenTo( this, 'change:from', this.changeRevisionHandler ); |
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this.listenTo( this, 'change:to', this.changeRevisionHandler ); |
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this.listenTo( this, 'change:compareTwoMode', this.changeMode ); |
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this.listenTo( this, 'update:revisions', this.updatedRevisions ); |
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this.listenTo( this.diffs, 'ensure:load', this.updateLoadingStatus ); |
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this.listenTo( this, 'update:diff', this.updateLoadingStatus ); |
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// Set the initial revisions, baseUrl, and mode as provided through settings |
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properties.to = this.revisions.get( revisions.settings.to ); |
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properties.from = this.revisions.get( revisions.settings.from ); |
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properties.compareTwoMode = revisions.settings.compareTwoMode; |
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properties.baseUrl = revisions.settings.baseUrl; |
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this.set( properties ); |
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// Start the router if browser supports History API |
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if ( window.history && window.history.pushState ) { |
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this.router = new revisions.Router({ model: this }); |
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Backbone.history.start({ pushState: true }); |
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} |
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}, |
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updateLoadingStatus: function() { |
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this.set( 'error', false ); |
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this.set( 'loading', ! this.diff() ); |
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}, |
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changeMode: function( model, value ) { |
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// If we were on the first revision before switching, we have to bump them over one |
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if ( value && 0 === this.revisions.indexOf( this.get('to') ) ) { |
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this.set({ |
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from: this.revisions.at(0), |
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to: this.revisions.at(1) |
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}); |
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} |
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}, |
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updatedRevisions: function( from, to ) { |
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if ( this.get( 'compareTwoMode' ) ) { |
|
|
403 |
// TODO: compare-two loading strategy |
|
|
404 |
} else { |
|
|
405 |
this.diffs.loadAll( this.revisions.pluck('id'), to.id, 40 ); |
|
|
406 |
} |
|
|
407 |
}, |
|
|
408 |
|
|
|
409 |
// Fetch the currently loaded diff. |
|
|
410 |
diff: function() { |
|
|
411 |
return this.diffs.get( this._diffId ); |
|
|
412 |
}, |
|
|
413 |
|
|
|
414 |
// So long as `from` and `to` are changed at the same time, the diff |
|
|
415 |
// will only be updated once. This is because Backbone updates all of |
|
|
416 |
// the changed attributes in `set`, and then fires the `change` events. |
|
|
417 |
updateDiff: function( options ) { |
|
|
418 |
var from, to, diffId, diff; |
|
|
419 |
|
|
|
420 |
options = options || {}; |
|
|
421 |
from = this.get('from'); |
|
|
422 |
to = this.get('to'); |
|
|
423 |
diffId = ( from ? from.id : 0 ) + ':' + to.id; |
|
|
424 |
|
|
|
425 |
// Check if we're actually changing the diff id. |
|
|
426 |
if ( this._diffId === diffId ) |
|
|
427 |
return $.Deferred().reject().promise(); |
|
|
428 |
|
|
|
429 |
this._diffId = diffId; |
|
|
430 |
this.trigger( 'update:revisions', from, to ); |
|
|
431 |
|
|
|
432 |
diff = this.diffs.get( diffId ); |
|
|
433 |
|
|
|
434 |
// If we already have the diff, then immediately trigger the update. |
|
|
435 |
if ( diff ) { |
|
|
436 |
this.receiveDiff( diff ); |
|
|
437 |
return $.Deferred().resolve().promise(); |
|
|
438 |
// Otherwise, fetch the diff. |
|
|
439 |
} else { |
|
|
440 |
if ( options.immediate ) { |
|
|
441 |
return this._ensureDiff(); |
|
|
442 |
} else { |
|
|
443 |
this._debouncedEnsureDiff(); |
|
|
444 |
return $.Deferred().reject().promise(); |
|
|
445 |
} |
|
|
446 |
} |
|
|
447 |
}, |
|
|
448 |
|
|
|
449 |
// A simple wrapper around `updateDiff` to prevent the change event's |
|
|
450 |
// parameters from being passed through. |
|
|
451 |
changeRevisionHandler: function( model, value, options ) { |
|
|
452 |
this.updateDiff(); |
|
|
453 |
}, |
|
|
454 |
|
|
|
455 |
receiveDiff: function( diff ) { |
|
|
456 |
// Did we actually get a diff? |
|
|
457 |
if ( _.isUndefined( diff ) || _.isUndefined( diff.id ) ) { |
|
|
458 |
this.set({ |
|
|
459 |
loading: false, |
|
|
460 |
error: true |
|
|
461 |
}); |
|
|
462 |
} else if ( this._diffId === diff.id ) { // Make sure the current diff didn't change |
|
|
463 |
this.trigger( 'update:diff', diff ); |
|
|
464 |
} |
|
|
465 |
}, |
|
|
466 |
|
|
|
467 |
_ensureDiff: function() { |
|
|
468 |
return this.diffs.ensure( this._diffId, this ).always( this.receiveDiff ); |
|
|
469 |
} |
|
|
470 |
}); |
|
|
471 |
|
|
|
472 |
|
|
|
473 |
/** |
|
|
474 |
* ======================================================================== |
|
|
475 |
* VIEWS |
|
|
476 |
* ======================================================================== |
|
|
477 |
*/ |
|
|
478 |
|
|
|
479 |
// The frame view. This contains the entire page. |
|
|
480 |
revisions.view.Frame = wp.Backbone.View.extend({ |
|
|
481 |
className: 'revisions', |
|
|
482 |
template: wp.template('revisions-frame'), |
|
|
483 |
|
|
|
484 |
initialize: function() { |
|
|
485 |
this.listenTo( this.model, 'update:diff', this.renderDiff ); |
|
|
486 |
this.listenTo( this.model, 'change:compareTwoMode', this.updateCompareTwoMode ); |
|
|
487 |
this.listenTo( this.model, 'change:loading', this.updateLoadingStatus ); |
|
|
488 |
this.listenTo( this.model, 'change:error', this.updateErrorStatus ); |
|
|
489 |
|
|
|
490 |
this.views.set( '.revisions-control-frame', new revisions.view.Controls({ |
|
|
491 |
model: this.model |
|
|
492 |
}) ); |
|
|
493 |
}, |
|
|
494 |
|
|
|
495 |
render: function() { |
|
|
496 |
wp.Backbone.View.prototype.render.apply( this, arguments ); |
|
|
497 |
|
|
|
498 |
$('html').css( 'overflow-y', 'scroll' ); |
|
|
499 |
$('#wpbody-content .wrap').append( this.el ); |
|
|
500 |
this.updateCompareTwoMode(); |
|
|
501 |
this.renderDiff( this.model.diff() ); |
|
|
502 |
this.views.ready(); |
|
|
503 |
|
|
|
504 |
return this; |
|
|
505 |
}, |
|
|
506 |
|
|
|
507 |
renderDiff: function( diff ) { |
|
|
508 |
this.views.set( '.revisions-diff-frame', new revisions.view.Diff({ |
|
|
509 |
model: diff |
|
|
510 |
}) ); |
|
|
511 |
}, |
|
|
512 |
|
|
|
513 |
updateLoadingStatus: function() { |
|
|
514 |
this.$el.toggleClass( 'loading', this.model.get('loading') ); |
|
|
515 |
}, |
|
|
516 |
|
|
|
517 |
updateErrorStatus: function() { |
|
|
518 |
this.$el.toggleClass( 'diff-error', this.model.get('error') ); |
|
|
519 |
}, |
|
|
520 |
|
|
|
521 |
updateCompareTwoMode: function() { |
|
|
522 |
this.$el.toggleClass( 'comparing-two-revisions', this.model.get('compareTwoMode') ); |
|
|
523 |
} |
|
|
524 |
}); |
|
|
525 |
|
|
|
526 |
// The control view. |
|
|
527 |
// This contains the revision slider, previous/next buttons, the meta info and the compare checkbox. |
|
|
528 |
revisions.view.Controls = wp.Backbone.View.extend({ |
|
|
529 |
className: 'revisions-controls', |
|
|
530 |
|
|
|
531 |
initialize: function() { |
|
|
532 |
_.bindAll( this, 'setWidth' ); |
|
|
533 |
|
|
|
534 |
// Add the button view |
|
|
535 |
this.views.add( new revisions.view.Buttons({ |
|
|
536 |
model: this.model |
|
|
537 |
}) ); |
|
|
538 |
|
|
|
539 |
// Add the checkbox view |
|
|
540 |
this.views.add( new revisions.view.Checkbox({ |
|
|
541 |
model: this.model |
|
|
542 |
}) ); |
|
|
543 |
|
|
|
544 |
// Prep the slider model |
|
|
545 |
var slider = new revisions.model.Slider({ |
|
|
546 |
frame: this.model, |
|
|
547 |
revisions: this.model.revisions |
|
|
548 |
}); |
|
|
549 |
|
|
|
550 |
// Prep the tooltip model |
|
|
551 |
var tooltip = new revisions.model.Tooltip({ |
|
|
552 |
frame: this.model, |
|
|
553 |
revisions: this.model.revisions, |
|
|
554 |
slider: slider |
|
|
555 |
}); |
|
|
556 |
|
|
|
557 |
// Add the tooltip view |
|
|
558 |
this.views.add( new revisions.view.Tooltip({ |
|
|
559 |
model: tooltip |
|
|
560 |
}) ); |
|
|
561 |
|
|
|
562 |
// Add the tickmarks view |
|
|
563 |
this.views.add( new revisions.view.Tickmarks({ |
|
|
564 |
model: tooltip |
|
|
565 |
}) ); |
|
|
566 |
|
|
|
567 |
// Add the slider view |
|
|
568 |
this.views.add( new revisions.view.Slider({ |
|
|
569 |
model: slider |
|
|
570 |
}) ); |
|
|
571 |
|
|
|
572 |
// Add the Metabox view |
|
|
573 |
this.views.add( new revisions.view.Metabox({ |
|
|
574 |
model: this.model |
|
|
575 |
}) ); |
|
|
576 |
}, |
|
|
577 |
|
|
|
578 |
ready: function() { |
|
|
579 |
this.top = this.$el.offset().top; |
|
|
580 |
this.window = $(window); |
|
|
581 |
this.window.on( 'scroll.wp.revisions', {controls: this}, function(e) { |
|
|
582 |
var controls = e.data.controls; |
|
|
583 |
var container = controls.$el.parent(); |
|
|
584 |
var scrolled = controls.window.scrollTop(); |
|
|
585 |
var frame = controls.views.parent; |
|
|
586 |
|
|
|
587 |
if ( scrolled >= controls.top ) { |
|
|
588 |
if ( ! frame.$el.hasClass('pinned') ) { |
|
|
589 |
controls.setWidth(); |
|
|
590 |
container.css('height', container.height() + 'px' ); |
|
|
591 |
controls.window.on('resize.wp.revisions.pinning click.wp.revisions.pinning', {controls: controls}, function(e) { |
|
|
592 |
e.data.controls.setWidth(); |
|
|
593 |
}); |
|
|
594 |
} |
|
|
595 |
frame.$el.addClass('pinned'); |
|
|
596 |
} else if ( frame.$el.hasClass('pinned') ) { |
|
|
597 |
controls.window.off('.wp.revisions.pinning'); |
|
|
598 |
controls.$el.css('width', 'auto'); |
|
|
599 |
frame.$el.removeClass('pinned'); |
|
|
600 |
container.css('height', 'auto'); |
|
|
601 |
controls.top = controls.$el.offset().top; |
|
|
602 |
} else { |
|
|
603 |
controls.top = controls.$el.offset().top; |
|
|
604 |
} |
|
|
605 |
}); |
|
|
606 |
}, |
|
|
607 |
|
|
|
608 |
setWidth: function() { |
|
|
609 |
this.$el.css('width', this.$el.parent().width() + 'px'); |
|
|
610 |
} |
|
|
611 |
}); |
|
|
612 |
|
|
|
613 |
// The tickmarks view |
|
|
614 |
revisions.view.Tickmarks = wp.Backbone.View.extend({ |
|
|
615 |
className: 'revisions-tickmarks', |
|
|
616 |
direction: isRtl ? 'right' : 'left', |
|
|
617 |
|
|
|
618 |
initialize: function() { |
|
|
619 |
this.listenTo( this.model, 'change:revision', this.reportTickPosition ); |
|
|
620 |
}, |
|
|
621 |
|
|
|
622 |
reportTickPosition: function( model, revision ) { |
|
|
623 |
var offset, thisOffset, parentOffset, tick, index = this.model.revisions.indexOf( revision ); |
|
|
624 |
thisOffset = this.$el.allOffsets(); |
|
|
625 |
parentOffset = this.$el.parent().allOffsets(); |
|
|
626 |
if ( index === this.model.revisions.length - 1 ) { |
|
|
627 |
// Last one |
|
|
628 |
offset = { |
|
|
629 |
rightPlusWidth: thisOffset.left - parentOffset.left + 1, |
|
|
630 |
leftPlusWidth: thisOffset.right - parentOffset.right + 1 |
|
|
631 |
}; |
|
|
632 |
} else { |
|
|
633 |
// Normal tick |
|
|
634 |
tick = this.$('div:nth-of-type(' + (index + 1) + ')'); |
|
|
635 |
offset = tick.allPositions(); |
|
|
636 |
_.extend( offset, { |
|
|
637 |
left: offset.left + thisOffset.left - parentOffset.left, |
|
|
638 |
right: offset.right + thisOffset.right - parentOffset.right |
|
|
639 |
}); |
|
|
640 |
_.extend( offset, { |
|
|
641 |
leftPlusWidth: offset.left + tick.outerWidth(), |
|
|
642 |
rightPlusWidth: offset.right + tick.outerWidth() |
|
|
643 |
}); |
|
|
644 |
} |
|
|
645 |
this.model.set({ offset: offset }); |
|
|
646 |
}, |
|
|
647 |
|
|
|
648 |
ready: function() { |
|
|
649 |
var tickCount, tickWidth; |
|
|
650 |
tickCount = this.model.revisions.length - 1; |
|
|
651 |
tickWidth = 1 / tickCount; |
|
|
652 |
this.$el.css('width', ( this.model.revisions.length * 50 ) + 'px'); |
|
|
653 |
|
|
|
654 |
_(tickCount).times( function( index ){ |
|
|
655 |
this.$el.append( '<div style="' + this.direction + ': ' + ( 100 * tickWidth * index ) + '%"></div>' ); |
|
|
656 |
}, this ); |
|
|
657 |
} |
|
|
658 |
}); |
|
|
659 |
|
|
|
660 |
// The metabox view |
|
|
661 |
revisions.view.Metabox = wp.Backbone.View.extend({ |
|
|
662 |
className: 'revisions-meta', |
|
|
663 |
|
|
|
664 |
initialize: function() { |
|
|
665 |
// Add the 'from' view |
|
|
666 |
this.views.add( new revisions.view.MetaFrom({ |
|
|
667 |
model: this.model, |
|
|
668 |
className: 'diff-meta diff-meta-from' |
|
|
669 |
}) ); |
|
|
670 |
|
|
|
671 |
// Add the 'to' view |
|
|
672 |
this.views.add( new revisions.view.MetaTo({ |
|
|
673 |
model: this.model |
|
|
674 |
}) ); |
|
|
675 |
} |
|
|
676 |
}); |
|
|
677 |
|
|
|
678 |
// The revision meta view (to be extended) |
|
|
679 |
revisions.view.Meta = wp.Backbone.View.extend({ |
|
|
680 |
template: wp.template('revisions-meta'), |
|
|
681 |
|
|
|
682 |
events: { |
|
|
683 |
'click .restore-revision': 'restoreRevision' |
|
|
684 |
}, |
|
|
685 |
|
|
|
686 |
initialize: function() { |
|
|
687 |
this.listenTo( this.model, 'update:revisions', this.render ); |
|
|
688 |
}, |
|
|
689 |
|
|
|
690 |
prepare: function() { |
|
|
691 |
return _.extend( this.model.toJSON()[this.type] || {}, { |
|
|
692 |
type: this.type |
|
|
693 |
}); |
|
|
694 |
}, |
|
|
695 |
|
|
|
696 |
restoreRevision: function() { |
|
|
697 |
document.location = this.model.get('to').attributes.restoreUrl; |
|
|
698 |
} |
|
|
699 |
}); |
|
|
700 |
|
|
|
701 |
// The revision meta 'from' view |
|
|
702 |
revisions.view.MetaFrom = revisions.view.Meta.extend({ |
|
|
703 |
className: 'diff-meta diff-meta-from', |
|
|
704 |
type: 'from' |
|
|
705 |
}); |
|
|
706 |
|
|
|
707 |
// The revision meta 'to' view |
|
|
708 |
revisions.view.MetaTo = revisions.view.Meta.extend({ |
|
|
709 |
className: 'diff-meta diff-meta-to', |
|
|
710 |
type: 'to' |
|
|
711 |
}); |
|
|
712 |
|
|
|
713 |
// The checkbox view. |
|
|
714 |
revisions.view.Checkbox = wp.Backbone.View.extend({ |
|
|
715 |
className: 'revisions-checkbox', |
|
|
716 |
template: wp.template('revisions-checkbox'), |
|
|
717 |
|
|
|
718 |
events: { |
|
|
719 |
'click .compare-two-revisions': 'compareTwoToggle' |
|
|
720 |
}, |
|
|
721 |
|
|
|
722 |
initialize: function() { |
|
|
723 |
this.listenTo( this.model, 'change:compareTwoMode', this.updateCompareTwoMode ); |
|
|
724 |
}, |
|
|
725 |
|
|
|
726 |
ready: function() { |
|
|
727 |
if ( this.model.revisions.length < 3 ) |
|
|
728 |
$('.revision-toggle-compare-mode').hide(); |
|
|
729 |
}, |
|
|
730 |
|
|
|
731 |
updateCompareTwoMode: function() { |
|
|
732 |
this.$('.compare-two-revisions').prop( 'checked', this.model.get('compareTwoMode') ); |
|
|
733 |
}, |
|
|
734 |
|
|
|
735 |
// Toggle the compare two mode feature when the compare two checkbox is checked. |
|
|
736 |
compareTwoToggle: function( event ) { |
|
|
737 |
// Activate compare two mode? |
|
|
738 |
this.model.set({ compareTwoMode: $('.compare-two-revisions').prop('checked') }); |
|
|
739 |
} |
|
|
740 |
}); |
|
|
741 |
|
|
|
742 |
// The tooltip view. |
|
|
743 |
// Encapsulates the tooltip. |
|
|
744 |
revisions.view.Tooltip = wp.Backbone.View.extend({ |
|
|
745 |
className: 'revisions-tooltip', |
|
|
746 |
template: wp.template('revisions-meta'), |
|
|
747 |
|
|
|
748 |
initialize: function( options ) { |
|
|
749 |
this.listenTo( this.model, 'change:offset', this.render ); |
|
|
750 |
this.listenTo( this.model, 'change:hovering', this.toggleVisibility ); |
|
|
751 |
this.listenTo( this.model, 'change:scrubbing', this.toggleVisibility ); |
|
|
752 |
}, |
|
|
753 |
|
|
|
754 |
prepare: function() { |
|
|
755 |
if ( _.isNull( this.model.get('revision') ) ) |
|
|
756 |
return; |
|
|
757 |
else |
|
|
758 |
return _.extend( { type: 'tooltip' }, { |
|
|
759 |
attributes: this.model.get('revision').toJSON() |
|
|
760 |
}); |
|
|
761 |
}, |
|
|
762 |
|
|
|
763 |
render: function() { |
|
|
764 |
var direction, directionVal, flipped, css = {}, position = this.model.revisions.indexOf( this.model.get('revision') ) + 1; |
|
|
765 |
flipped = ( position / this.model.revisions.length ) > 0.5; |
|
|
766 |
if ( isRtl ) { |
|
|
767 |
direction = flipped ? 'left' : 'right'; |
|
|
768 |
directionVal = flipped ? 'leftPlusWidth' : direction; |
|
|
769 |
} else { |
|
|
770 |
direction = flipped ? 'right' : 'left'; |
|
|
771 |
directionVal = flipped ? 'rightPlusWidth' : direction; |
|
|
772 |
} |
|
|
773 |
otherDirection = 'right' === direction ? 'left': 'right'; |
|
|
774 |
wp.Backbone.View.prototype.render.apply( this, arguments ); |
|
|
775 |
css[direction] = this.model.get('offset')[directionVal] + 'px'; |
|
|
776 |
css[otherDirection] = ''; |
|
|
777 |
this.$el.toggleClass( 'flipped', flipped ).css( css ); |
|
|
778 |
}, |
|
|
779 |
|
|
|
780 |
visible: function() { |
|
|
781 |
return this.model.get( 'scrubbing' ) || this.model.get( 'hovering' ); |
|
|
782 |
}, |
|
|
783 |
|
|
|
784 |
toggleVisibility: function( options ) { |
|
|
785 |
if ( this.visible() ) |
|
|
786 |
this.$el.stop().show().fadeTo( 100 - this.el.style.opacity * 100, 1 ); |
|
|
787 |
else |
|
|
788 |
this.$el.stop().fadeTo( this.el.style.opacity * 300, 0, function(){ $(this).hide(); } ); |
|
|
789 |
return; |
|
|
790 |
} |
|
|
791 |
}); |
|
|
792 |
|
|
|
793 |
// The buttons view. |
|
|
794 |
// Encapsulates all of the configuration for the previous/next buttons. |
|
|
795 |
revisions.view.Buttons = wp.Backbone.View.extend({ |
|
|
796 |
className: 'revisions-buttons', |
|
|
797 |
template: wp.template('revisions-buttons'), |
|
|
798 |
|
|
|
799 |
events: { |
|
|
800 |
'click .revisions-next .button': 'nextRevision', |
|
|
801 |
'click .revisions-previous .button': 'previousRevision' |
|
|
802 |
}, |
|
|
803 |
|
|
|
804 |
initialize: function() { |
|
|
805 |
this.listenTo( this.model, 'update:revisions', this.disabledButtonCheck ); |
|
|
806 |
}, |
|
|
807 |
|
|
|
808 |
ready: function() { |
|
|
809 |
this.disabledButtonCheck(); |
|
|
810 |
}, |
|
|
811 |
|
|
|
812 |
// Go to a specific model index |
|
|
813 |
gotoModel: function( toIndex ) { |
|
|
814 |
var attributes = { |
|
|
815 |
to: this.model.revisions.at( toIndex ) |
|
|
816 |
}; |
|
|
817 |
// If we're at the first revision, unset 'from'. |
|
|
818 |
if ( toIndex ) |
|
|
819 |
attributes.from = this.model.revisions.at( toIndex - 1 ); |
|
|
820 |
else |
|
|
821 |
this.model.unset('from', { silent: true }); |
|
|
822 |
|
|
|
823 |
this.model.set( attributes ); |
|
|
824 |
}, |
|
|
825 |
|
|
|
826 |
// Go to the 'next' revision |
|
|
827 |
nextRevision: function() { |
|
|
828 |
var toIndex = this.model.revisions.indexOf( this.model.get('to') ) + 1; |
|
|
829 |
this.gotoModel( toIndex ); |
|
|
830 |
}, |
|
|
831 |
|
|
|
832 |
// Go to the 'previous' revision |
|
|
833 |
previousRevision: function() { |
|
|
834 |
var toIndex = this.model.revisions.indexOf( this.model.get('to') ) - 1; |
|
|
835 |
this.gotoModel( toIndex ); |
|
|
836 |
}, |
|
|
837 |
|
|
|
838 |
// Check to see if the Previous or Next buttons need to be disabled or enabled. |
|
|
839 |
disabledButtonCheck: function() { |
|
|
840 |
var maxVal = this.model.revisions.length - 1, |
|
|
841 |
minVal = 0, |
|
|
842 |
next = $('.revisions-next .button'), |
|
|
843 |
previous = $('.revisions-previous .button'), |
|
|
844 |
val = this.model.revisions.indexOf( this.model.get('to') ); |
|
|
845 |
|
|
|
846 |
// Disable "Next" button if you're on the last node. |
|
|
847 |
next.prop( 'disabled', ( maxVal === val ) ); |
|
|
848 |
|
|
|
849 |
// Disable "Previous" button if you're on the first node. |
|
|
850 |
previous.prop( 'disabled', ( minVal === val ) ); |
|
|
851 |
} |
|
|
852 |
}); |
|
|
853 |
|
|
|
854 |
|
|
|
855 |
// The slider view. |
|
|
856 |
revisions.view.Slider = wp.Backbone.View.extend({ |
|
|
857 |
className: 'wp-slider', |
|
|
858 |
direction: isRtl ? 'right' : 'left', |
|
|
859 |
|
|
|
860 |
events: { |
|
|
861 |
'mousemove' : 'mouseMove' |
|
|
862 |
}, |
|
|
863 |
|
|
|
864 |
initialize: function() { |
|
|
865 |
_.bindAll( this, 'start', 'slide', 'stop', 'mouseMove', 'mouseEnter', 'mouseLeave' ); |
|
|
866 |
this.listenTo( this.model, 'update:slider', this.applySliderSettings ); |
|
|
867 |
}, |
|
|
868 |
|
|
|
869 |
ready: function() { |
|
|
870 |
this.$el.css('width', ( this.model.revisions.length * 50 ) + 'px'); |
|
|
871 |
this.$el.slider( _.extend( this.model.toJSON(), { |
|
|
872 |
start: this.start, |
|
|
873 |
slide: this.slide, |
|
|
874 |
stop: this.stop |
|
|
875 |
}) ); |
|
|
876 |
|
|
|
877 |
this.$el.hoverIntent({ |
|
|
878 |
over: this.mouseEnter, |
|
|
879 |
out: this.mouseLeave, |
|
|
880 |
timeout: 800 |
|
|
881 |
}); |
|
|
882 |
|
|
|
883 |
this.applySliderSettings(); |
|
|
884 |
}, |
|
|
885 |
|
|
|
886 |
mouseMove: function( e ) { |
|
|
887 |
var zoneCount = this.model.revisions.length - 1, // One fewer zone than models |
|
|
888 |
sliderFrom = this.$el.allOffsets()[this.direction], // "From" edge of slider |
|
|
889 |
sliderWidth = this.$el.width(), // Width of slider |
|
|
890 |
tickWidth = sliderWidth / zoneCount, // Calculated width of zone |
|
|
891 |
actualX = isRtl? $(window).width() - e.pageX : e.pageX; // Flipped for RTL - sliderFrom; |
|
|
892 |
actualX = actualX - sliderFrom; // Offset of mouse position in slider |
|
|
893 |
var currentModelIndex = Math.floor( ( actualX + ( tickWidth / 2 ) ) / tickWidth ); // Calculate the model index |
|
|
894 |
|
|
|
895 |
// Ensure sane value for currentModelIndex. |
|
|
896 |
if ( currentModelIndex < 0 ) |
|
|
897 |
currentModelIndex = 0; |
|
|
898 |
else if ( currentModelIndex >= this.model.revisions.length ) |
|
|
899 |
currentModelIndex = this.model.revisions.length - 1; |
|
|
900 |
|
|
|
901 |
// Update the tooltip mode |
|
|
902 |
this.model.set({ hoveredRevision: this.model.revisions.at( currentModelIndex ) }); |
|
|
903 |
}, |
|
|
904 |
|
|
|
905 |
mouseLeave: function() { |
|
|
906 |
this.model.set({ hovering: false }); |
|
|
907 |
}, |
|
|
908 |
|
|
|
909 |
mouseEnter: function() { |
|
|
910 |
this.model.set({ hovering: true }); |
|
|
911 |
}, |
|
|
912 |
|
|
|
913 |
applySliderSettings: function() { |
|
|
914 |
this.$el.slider( _.pick( this.model.toJSON(), 'value', 'values', 'range' ) ); |
|
|
915 |
var handles = this.$('a.ui-slider-handle'); |
|
|
916 |
|
|
|
917 |
if ( this.model.get('compareTwoMode') ) { |
|
|
918 |
// in RTL mode the 'left handle' is the second in the slider, 'right' is first |
|
|
919 |
handles.first() |
|
|
920 |
.toggleClass( 'to-handle', !! isRtl ) |
|
|
921 |
.toggleClass( 'from-handle', ! isRtl ); |
|
|
922 |
handles.last() |
|
|
923 |
.toggleClass( 'from-handle', !! isRtl ) |
|
|
924 |
.toggleClass( 'to-handle', ! isRtl ); |
|
|
925 |
} else { |
|
|
926 |
handles.removeClass('from-handle to-handle'); |
|
|
927 |
} |
|
|
928 |
}, |
|
|
929 |
|
|
|
930 |
start: function( event, ui ) { |
|
|
931 |
this.model.set({ scrubbing: true }); |
|
|
932 |
|
|
|
933 |
// Track the mouse position to enable smooth dragging, |
|
|
934 |
// overrides default jQuery UI step behavior. |
|
|
935 |
$( window ).on( 'mousemove.wp.revisions', { view: this }, function( e ) { |
|
|
936 |
var view = e.data.view, |
|
|
937 |
leftDragBoundary = view.$el.offset().left, |
|
|
938 |
sliderOffset = leftDragBoundary, |
|
|
939 |
sliderRightEdge = leftDragBoundary + view.$el.width(), |
|
|
940 |
rightDragBoundary = sliderRightEdge, |
|
|
941 |
leftDragReset = '0', |
|
|
942 |
rightDragReset = '100%', |
|
|
943 |
handle = $( ui.handle ); |
|
|
944 |
|
|
|
945 |
// In two handle mode, ensure handles can't be dragged past each other. |
|
|
946 |
// Adjust left/right boundaries and reset points. |
|
|
947 |
if ( view.model.get('compareTwoMode') ) { |
|
|
948 |
var handles = handle.parent().find('.ui-slider-handle'); |
|
|
949 |
if ( handle.is( handles.first() ) ) { // We're the left handle |
|
|
950 |
rightDragBoundary = handles.last().offset().left; |
|
|
951 |
rightDragReset = rightDragBoundary - sliderOffset; |
|
|
952 |
} else { // We're the right handle |
|
|
953 |
leftDragBoundary = handles.first().offset().left + handles.first().width(); |
|
|
954 |
leftDragReset = leftDragBoundary - sliderOffset; |
|
|
955 |
} |
|
|
956 |
} |
|
|
957 |
|
|
|
958 |
// Follow mouse movements, as long as handle remains inside slider. |
|
|
959 |
if ( e.pageX < leftDragBoundary ) { |
|
|
960 |
handle.css( 'left', leftDragReset ); // Mouse to left of slider. |
|
|
961 |
} else if ( e.pageX > rightDragBoundary ) { |
|
|
962 |
handle.css( 'left', rightDragReset ); // Mouse to right of slider. |
|
|
963 |
} else { |
|
|
964 |
handle.css( 'left', e.pageX - sliderOffset ); // Mouse in slider. |
|
|
965 |
} |
|
|
966 |
} ); |
|
|
967 |
}, |
|
|
968 |
|
|
|
969 |
getPosition: function( position ) { |
|
|
970 |
return isRtl ? this.model.revisions.length - position - 1: position; |
|
|
971 |
}, |
|
|
972 |
|
|
|
973 |
// Responds to slide events |
|
|
974 |
slide: function( event, ui ) { |
|
|
975 |
var attributes, movedRevision; |
|
|
976 |
// Compare two revisions mode |
|
|
977 |
if ( this.model.get('compareTwoMode') ) { |
|
|
978 |
// Prevent sliders from occupying same spot |
|
|
979 |
if ( ui.values[1] === ui.values[0] ) |
|
|
980 |
return false; |
|
|
981 |
if ( isRtl ) |
|
|
982 |
ui.values.reverse(); |
|
|
983 |
attributes = { |
|
|
984 |
from: this.model.revisions.at( this.getPosition( ui.values[0] ) ), |
|
|
985 |
to: this.model.revisions.at( this.getPosition( ui.values[1] ) ) |
|
|
986 |
}; |
|
|
987 |
} else { |
|
|
988 |
attributes = { |
|
|
989 |
to: this.model.revisions.at( this.getPosition( ui.value ) ) |
|
|
990 |
}; |
|
|
991 |
// If we're at the first revision, unset 'from'. |
|
|
992 |
if ( this.getPosition( ui.value ) > 0 ) |
|
|
993 |
attributes.from = this.model.revisions.at( this.getPosition( ui.value ) - 1 ); |
|
|
994 |
else |
|
|
995 |
attributes.from = undefined; |
|
|
996 |
} |
|
|
997 |
movedRevision = this.model.revisions.at( this.getPosition( ui.value ) ); |
|
|
998 |
|
|
|
999 |
// If we are scrubbing, a scrub to a revision is considered a hover |
|
|
1000 |
if ( this.model.get('scrubbing') ) |
|
|
1001 |
attributes.hoveredRevision = movedRevision; |
|
|
1002 |
|
|
|
1003 |
this.model.set( attributes ); |
|
|
1004 |
}, |
|
|
1005 |
|
|
|
1006 |
stop: function( event, ui ) { |
|
|
1007 |
$( window ).off('mousemove.wp.revisions'); |
|
|
1008 |
this.model.updateSliderSettings(); // To snap us back to a tick mark |
|
|
1009 |
this.model.set({ scrubbing: false }); |
|
|
1010 |
} |
|
|
1011 |
}); |
|
|
1012 |
|
|
|
1013 |
// The diff view. |
|
|
1014 |
// This is the view for the current active diff. |
|
|
1015 |
revisions.view.Diff = wp.Backbone.View.extend({ |
|
|
1016 |
className: 'revisions-diff', |
|
|
1017 |
template: wp.template('revisions-diff'), |
|
|
1018 |
|
|
|
1019 |
// Generate the options to be passed to the template. |
|
|
1020 |
prepare: function() { |
|
|
1021 |
return _.extend({ fields: this.model.fields.toJSON() }, this.options ); |
|
|
1022 |
} |
|
|
1023 |
}); |
|
|
1024 |
|
|
|
1025 |
// The revisions router |
|
|
1026 |
// takes URLs with #hash fragments and routes them |
|
|
1027 |
revisions.Router = Backbone.Router.extend({ |
|
|
1028 |
initialize: function( options ) { |
|
|
1029 |
this.model = options.model; |
|
|
1030 |
this.routes = _.object([ |
|
|
1031 |
[ this.baseUrl( '?from=:from&to=:to' ), 'handleRoute' ], |
|
|
1032 |
[ this.baseUrl( '?from=:from&to=:to' ), 'handleRoute' ] |
|
|
1033 |
]); |
|
|
1034 |
// Maintain state and history when navigating |
|
|
1035 |
this.listenTo( this.model, 'update:diff', _.debounce( this.updateUrl, 250 ) ); |
|
|
1036 |
this.listenTo( this.model, 'change:compareTwoMode', this.updateUrl ); |
|
|
1037 |
}, |
|
|
1038 |
|
|
|
1039 |
baseUrl: function( url ) { |
|
|
1040 |
return this.model.get('baseUrl') + url; |
|
|
1041 |
}, |
|
|
1042 |
|
|
|
1043 |
updateUrl: function() { |
|
|
1044 |
var from = this.model.has('from') ? this.model.get('from').id : 0; |
|
|
1045 |
var to = this.model.get('to').id; |
|
|
1046 |
if ( this.model.get('compareTwoMode' ) ) |
|
|
1047 |
this.navigate( this.baseUrl( '?from=' + from + '&to=' + to ) ); |
|
|
1048 |
else |
|
|
1049 |
this.navigate( this.baseUrl( '?revision=' + to ) ); |
|
|
1050 |
}, |
|
|
1051 |
|
|
|
1052 |
handleRoute: function( a, b ) { |
|
|
1053 |
var from, to, compareTwo = _.isUndefined( b ); |
|
|
1054 |
|
|
|
1055 |
if ( ! compareTwo ) { |
|
|
1056 |
b = this.model.revisions.get( a ); |
|
|
1057 |
a = this.model.revisions.prev( b ); |
|
|
1058 |
b = b ? b.id : 0; |
|
|
1059 |
a = a ? a.id : 0; |
|
|
1060 |
} |
|
|
1061 |
|
|
|
1062 |
this.model.set({ |
|
|
1063 |
from: this.model.revisions.get( parseInt( a, 10 ) ), |
|
|
1064 |
to: this.model.revisions.get( parseInt( a, 10 ) ), |
|
|
1065 |
compareTwoMode: compareTwo |
|
|
1066 |
}); |
|
|
1067 |
} |
|
|
1068 |
}); |
|
|
1069 |
|
|
|
1070 |
// Initialize the revisions UI. |
|
|
1071 |
revisions.init = function() { |
|
|
1072 |
revisions.view.frame = new revisions.view.Frame({ |
|
|
1073 |
model: new revisions.model.FrameState({}, { |
|
|
1074 |
revisions: new revisions.model.Revisions( revisions.settings.revisionData ) |
|
|
1075 |
}) |
|
|
1076 |
}).render(); |
|
|
1077 |
}; |
|
|
1078 |
|
|
|
1079 |
$( revisions.init ); |
|
|
1080 |
}(jQuery)); |