window.wp = window.wp || {}; (function($) { wp.revisions = { views: {}, Model: Backbone.Model.extend({ idAttribute: 'ID', urlRoot: ajaxurl + '?action=revisions-data' + '&show_autosaves=true&show_split_view=true&nonce=' + wpRevisionsSettings.nonce, defaults: { ID: 0, revision_date_author: '', revision_date_author_short: '', revisiondiff: '
', restoreaction: '', revision_from_date_author: '', revision_toload: false, lines_added: 0, lines_deleted: 0, scope_of_changes: 'none', previous_revision_id: 0 }, url: function() { if ( 1 === REVAPP._compareOneOrTwo ) { return this.urlRoot + '&single_revision_id=' + this.id + '&compare_to=' + this.get( 'previous_revision_id' ) + '&post_id=' + wpRevisionsSettings.post_id; } else { return this.urlRoot + '&single_revision_id=' + this.id; } } }), app: _.extend({}, Backbone.Events), App: Backbone.Router.extend({ _revisions: null, _leftHandleRevisions: null, _rightHandleRevisions: null, _revisionsInteractions: null, _revisionsOptions: null, _leftDiff: 1, _rightDiff: 1, _autosaves: true, _showSplitView: true, _compareOneOrTwo: 1, _leftModelLoading: false, // keep track of model loads _rightModelLoading: false, // disallow slider interaction, also repeat loads, while loading _tickmarkView: null, // the slider tickmarks routes: { }, reloadToLoadRevisions: function( model_collection, reverse_direction ) { var self = this, revisionsToLoad = model_collection.where( { revision_toload: true } ), delay = 0; // match slider to passed revision_id _.each( revisionsToLoad, function( theModel ) { if ( theModel.get( 'ID' ) == wpRevisionsSettings.revision_id ) { self._rightDiff = self._revisions.indexOf( theModel ) + 1; } }); _.each( revisionsToLoad, function( theModel ) { theModel.urlRoot = model_collection.url; _.delay( function() { theModel.fetch( { update: true, add: false, remove: false, success: function( model ) { model.set( 'revision_toload', 'false' ); // stop spinner when all models are loaded if ( 0 === model_collection.where( { revision_toload: true } ).length ) self.stopModelLoadingSpinner(); self._tickmarkView.render(); var total_changes = model.get( 'lines_added' ) + model.get( 'lines_deleted'), scope_of_changes = 'vsmall'; // Note: hard coded scope of changes // TODO change to dynamic based on range of values if ( total_changes > 1 && total_changes <= 3 ) { scope_of_changes = 'small'; } else if(total_changes > 3 && total_changes <= 5 ) { scope_of_changes = 'med'; } else if(total_changes > 5 && total_changes <= 10 ) { scope_of_changes = 'large'; } else if(total_changes > 10 ) { scope_of_changes = 'vlarge'; } model.set( 'scope_of_changes', scope_of_changes ); if ( 0 !== self._rightDiff && model.get( 'ID' ) === self._revisions.at( self._rightDiff - 1 ).get( 'ID' ) ) { // reload if current model refreshed self._revisionView.render(); } } } ); }, delay ) ; delay = delay + 150; // stagger model loads to avoid hammering server with requests } ); }, startLeftModelLoading: function() { this._leftModelLoading = true; $('.revisiondiffcontainer').addClass('leftmodelloading'); }, stopLeftModelLoading: function() { this._leftModelLoading = false; }, startRightModelLoading: function() { this._rightModelLoading = true; $('.revisiondiffcontainer').addClass('rightmodelloading'); }, stopRightModelLoading: function() { this._rightModelLoading = false; }, stopModelLoadingSpinner: function() { $('.revisiondiffcontainer').removeClass('rightmodelloading'); $('.revisiondiffcontainer').removeClass('leftmodelloading'); }, reloadModel: function() { if ( 2 === this._compareOneOrTwo ) { this.reloadLeftRight(); } else { this.reloadModelSingle(); } }, // load the models for the single handle mode reloadModelSingle: function() { var self = this; self._revisions.url = ajaxurl + '?action=revisions-data&compare_to=' + wpRevisionsSettings.post_id + '&show_autosaves=' + self._autosaves + '&show_split_view=' + self._showSplitView + '&nonce=' + wpRevisionsSettings.nonce; self.startRightModelLoading(); self._revisions.fetch({ // reload revision data success: function() { console.log('loaded'); // self.stopRightModelLoading(); // REVAPP._rightDiff -= 1; var revisionCount = self._revisions.length; self._revisionView.model = self._revisions; self._revisionView.render(); self.reloadToLoadRevisions( self._revisions ); self._tickmarkView.model = self._revisions; self._tickmarkView.render(); $( '#slider' ).slider( 'option', 'max', revisionCount - 1 ); // TODO: test this, if autosave option changed $( '#slider' ).slider( 'value', self._rightDiff - 1 ).trigger( 'slide' ); }, error: function() { self.stopRightModelLoading(); } }); }, // load the models for the left handle reloadLeft: function() { var self = this; self.startLeftModelLoading(); self._leftHandleRevisions = new wp.revisions.Collection(); self._leftHandleRevisions.url = ajaxurl + '?action=revisions-data&compare_to=' + self._revisions.at( self._rightDiff - 1 ).get( 'ID' ) + '&post_id=' + wpRevisionsSettings.post_id + '&show_autosaves=' + REVAPP._autosaves + '&show_split_view=' + REVAPP._showSplitView + '&nonce=' + wpRevisionsSettings.nonce + '&right_handle_at=' + ( self._rightDiff ); self._leftHandleRevisions.fetch({ success: function(){ self.stopLeftModelLoading(); self.reloadToLoadRevisions( self._leftHandleRevisions ); self._tickmarkView.model = self._leftHandleRevisions; $( '#slider' ).slider( 'option', 'max', self._revisions.length ); // ensure right handle not beyond length, in particular if viewing autosaves is switched from on to off // the number of models in the collection might get shorter, this ensures right handle is not beyond last model if ( self._rightDiff > self._revisions.length ) self._rightDiff = self._revisions.length; }, error: function() { self.stopLeftModelLoading(); } }); }, // load the models for the right handle reloadRight: function() { var self = this; self.startRightModelLoading(); self._rightHandleRevisions = new wp.revisions.Collection(); self._rightHandleRevisions.url = ajaxurl + '?action=revisions-data&compare_to=' + ( self._revisions.at( self._leftDiff ).get( 'ID' ) - 1 )+ '&post_id=' + wpRevisionsSettings.post_id + '&show_autosaves=' + REVAPP._autosaves + '&show_split_view=' + REVAPP._showSplitView + '&nonce=' + wpRevisionsSettings.nonce; self._rightHandleRevisions.fetch({ success: function(){ self.stopRightModelLoading(); self.reloadToLoadRevisions( self._rightHandleRevisions ); self._tickmarkView.model = self._rightHandleRevisions; $( '#slider' ).slider( 'option', 'max', self._revisions.length ); $( '#slider' ).slider( 'values', [ REVAPP._leftDiff, REVAPP._rightDiff] ).trigger( 'slide' ); // REVAPP._revisionView.render(); }, error: function( response ) { self.stopRightModelLoading(); } }); }, reloadLeftRight: function() { this.startRightModelLoading(); this.startLeftModelLoading(); this.reloadLeft(); this.reloadRight(); }, /* * initialize the revision application */ initialize: function( options ) { var self = this; // store the application instance if (this._revisions === null) { self._revisions = new wp.revisions.Collection(); // set up collection self.startRightModelLoading(); self._revisions.fetch({ // load revision data success: function() { self.stopRightModelLoading(); // self._rightHandleRevisions = self._revisions; self.completeApplicationSetup(); } }); } return this; }, addTooltip: function( handle, message ) { handle.attr( 'title', '' ).tooltip({ track: false, position: { my: "left-30 top-66", at: "top left", using: function( position, feedback ) { $( this ).css( position ); $( "
" ) .addClass( "arrow" ) .addClass( feedback.vertical ) .addClass( feedback.horizontal ) .appendTo( $( this ) ); } }, show: false, hide: false, content: function() { return message; } } ); }, /**/ completeApplicationSetup: function() { this._revisionView = new wp.revisions.views.View({ model: this._revisions }); this._revisionView.render(); $( '#slider' ).slider( 'option', 'max', this._revisions.length - 1 ); this.reloadToLoadRevisions( this._revisions ); this._revisionsInteractions = new wp.revisions.views.Interact({ model: this._revisions }); this._revisionsInteractions.render(); this._tickmarkView = new wp.revisions.views.Tickmarks({ model: this._revisions }); this._tickmarkView.render(); this._tickmarkView.resetTicks(); /* .on( 'mouseup', function( event ) { REVAPP._keep_tooltip_open = false; $( this ).find('.ui-slider-tooltip').hide(); } ).on( 'mousedown', function( event ) { REVAPP._keep_tooltip_open = true; } ).on( 'mouseout', function( event ) { if ( REVAPP._keep_tooltip_open) event.stopImmediatePropagation(); }); */ /* // Options hidden for now, moving to screen options this._revisionsOptions = new wp.revisions.views.Options({ model: this._revisions }); this._revisionsOptions.render(); */ } }) }; wp.revisions.Collection = Backbone.Collection.extend({ model: wp.revisions.Model, url: ajaxurl + '?action=revisions-data&compare_to=' + wpRevisionsSettings.post_id + '&show_autosaves=true&show_split_view=true&nonce=' + wpRevisionsSettings.nonce, initialize: function() { } } ); _.extend(wp.revisions.views, { // Ticks inside slider view Tickmarks: Backbone.View.extend({ el: $('#diff-slider-ticks')[0], tagName: 'diff-slider-ticks-view', className: 'diff-slider-ticks-container', template: wp.template('revision-ticks'), model: wp.revisions.Model, resetTicks: function() { var sliderMax = $( '#slider' ).slider( 'option', 'max'); var sliderWidth = $( '#slider' ).width(); var adjustMax = ( 2 === REVAPP._compareOneOrTwo ) ? 1 : 0; var tickWidth = Math.floor( sliderWidth / ( sliderMax - adjustMax ) ); // TODO: adjust right margins for wider ticks so they stay centered on handle stop point // set minimum and maximum widths for tick marks tickWidth = (tickWidth > 50 ) ? 50 : tickWidth; tickWidth = (tickWidth < 10 ) ? 10 : tickWidth; sliderWidth = tickWidth * (sliderMax - adjustMax ) + 1; $( '#slider' ).width( sliderWidth ); $( '.diff-slider-ticks-wrapper' ).width( sliderWidth ); $( '#diffslider' ).width( sliderWidth ); $( '#diff-slider-ticks' ).width( sliderWidth ); var aTickWidth = $( '.revision-tick' ).width(); if ( tickWidth !== aTickWidth ) { // is the width already set correctly? $( '.revision-tick' ).each( function( ) { $(this).css( 'margin-right', tickWidth - 1 + 'px'); // space the ticks out using right margin }); if( 2 === REVAPP._compareOneOrTwo ) { $( '.revision-tick' ).first().remove(); // TODO - remove the check } $( '.revision-tick' ).last().css( 'margin-right', '0' ); // last tick gets no right margin } }, // render the tickmark view render: function() { var self = this; if ( null !== self.model ) { var addHtml = ""; _.each ( self.model.models, function( theModel ) { addHtml = addHtml + self.template ( theModel.toJSON() ); }); self.$el.html( addHtml ); } self.resetTicks(); return self; } }), // primary revision diff view View: Backbone.View.extend({ el: $('#backbonerevisionsdiff')[0], tagName: 'revisionvview', className: 'revisionview-container', template: wp.template('revision'), comparetwochecked: '', draggingLeft: false, // render the revisions render: function() { var addHtml = ''; // compare two revisions mode? if ( 2 === REVAPP._compareOneOrTwo ) { this.comparetwochecked = 'checked'; if ( this.draggingLeft ) { if ( this.model.at( REVAPP._leftDiff ) ) { addHtml = this.template( _.extend( this.model.at( REVAPP._leftDiff ).toJSON(), { comparetwochecked: this.comparetwochecked } // keep the checkmark checked ) ); } } else { // dragging right handle var thediff = REVAPP._rightDiff; if ( this.model.at( thediff ) ) { addHtml = this.template( _.extend( this.model.at( thediff ).toJSON(), { comparetwochecked: this.comparetwochecked } // keep the checkmark checked ) ); } } } else { // end compare two revisions mode, eg only one slider handle this.comparetwochecked = ''; if ( this.model.at( REVAPP._rightDiff - 1 ) ) { addHtml = this.template( _.extend( this.model.at( REVAPP._rightDiff - 1 ).toJSON(), { comparetwochecked: this.comparetwochecked } // keep the checkmark unchecked ) ); } } this.$el.html( addHtml ); if ( this.model.length < 3 ) { $( 'div#comparetworevisions' ).hide(); // don't allow compare two if fewer than three revisions } if ( this.model.length < 2 ) { $( 'div#diffslider' ).hide(); // don't allow compare two if fewer than three revisions $( 'div.diff-slider-ticks-wrapper' ).hide(); } // add tooltips to the handles if ( 2 === REVAPP._compareOneOrTwo ) { REVAPP.addTooltip ( $( 'a.ui-slider-handle.left-handle' ), ( REVAPP._rightDiff >= REVAPP._revisions.length ) ? '' : REVAPP._revisions.at( REVAPP._leftDiff ).get( 'revision_date_author_short' ) ); REVAPP.addTooltip ( $( 'a.ui-slider-handle.right-handle' ), ( REVAPP._rightDiff >= REVAPP._revisions.length ) ? '' : REVAPP._revisions.at( REVAPP._rightDiff ).get( 'revision_date_author_short' ) ); } else { REVAPP.addTooltip ( $( 'a.ui-slider-handle' ), ( REVAPP._rightDiff >= REVAPP._revisions.length ) ? '' : REVAPP._revisions.at( REVAPP._rightDiff ).get( 'revision_date_author_short' ) ); } // hide the restore button when on the last sport/current post data if ( REVAPP._rightDiff === REVAPP._revisions.length ){ $( '.restore-button' ).hide(); } else { $( '.restore-button' ).show(); } return this; }, // the compare two button is in this view, add the interaction here events: { 'click #comparetwo': 'clickcomparetwo' }, // turn on/off the compare two mmode clickcomparetwo: function(){ self = this; if ( $( 'input#comparetwo' ).is( ':checked' ) ) { // compare 2 mode REVAPP._compareOneOrTwo = 2 ; if ( 1 === REVAPP._rightDiff ) REVAPP._rightDiff = 2; REVAPP._revisionView.draggingLeft = false; wpRevisionsSettings.revision_id = ''; // reset passed revision id so switching back to one handle mode doesn't re-select revision REVAPP.reloadLeftRight(); REVAPP._revisionView.model = REVAPP._rightHandleRevisions; } else { // compare one mode REVAPP._compareOneOrTwo = 1 ; REVAPP._revisionView.draggingLeft = false; // REVAPP._leftDiff = 0; // REVAPP._rightDiff = (REVAPP._revisions.length <= REVAPP._rightDiff ) ? REVAPP._rightDiff + 1 : REVAPP._rightDiff + 1; REVAPP.reloadModelSingle(); } // REVAPP._revisionView.render(); REVAPP._revisionsInteractions.render(); REVAPP._tickmarkView.render(); } }), // options view for show autosaves and show split view options /* DISABLED for now Options: Backbone.View.extend({ el: $('#backbonerevisionsoptions')[0], tagName: 'revisionoptionsview', className: 'revisionoptions-container', template: wp.template('revisionoptions'), // render the options view render: function() { var addHtml = this.template; this.$el.html( addHtml ); return this; }, // add options interactions events: { 'click #toggleshowautosaves': 'toggleshowautosaves', 'click #showsplitview': 'showsplitview' }, // toggle include autosaves toggleshowautosaves: function() { var self = this; if ( $( '#toggleshowautosaves' ).is( ':checked' ) ) { REVAPP._autosaves = true ; } else { REVAPP._autosaves = false ; } // refresh the model data REVAPP.reloadModel(); }, // toggle showing the split diff view showsplitview: function() { var self = this; if ( $( 'input#showsplitview' ).is( ':checked' ) ) { REVAPP._showSplitView = 'true'; $('.revisiondiffcontainer').addClass('diffsplit'); } else { REVAPP._showSplitView = ''; $('.revisiondiffcontainer').removeClass('diffsplit'); } REVAPP.reloadModel(); } }), */ // main interactions view Interact: Backbone.View.extend({ el: $('#backbonerevisionsinteract')[0], tagName: 'revisionvinteract', className: 'revisionvinteract-container', template: wp.template('revisionvinteract'), initialize: function() { }, render: function() { var self = this; var addHtml = this.template; this.$el.html( addHtml ); var modelcount = REVAPP._revisions.length; slider = $( "#slider" ); if ( 1 === REVAPP._compareOneOrTwo ) { // set up the slider with a single handle slider.slider({ value: REVAPP._rightDiff - 1, min: 0, max: modelcount - 1, step: 1, // slide interactions for one handles slider slide: function( event, ui ) { REVAPP._rightDiff = ( ui.value + 1 ); REVAPP._revisionView.render(); /* $( 'a.ui-slider-handle' ).tooltip( { content: REVAPP._revisions.at( ui.value ).get( 'revision_date_author_short' ), position: { my: "top-65", using: function( position, feedback ) { $( this ).css( position ); $( "
" ) .addClass( "arrow" ) .addClass( feedback.vertical ) .addClass( feedback.horizontal ) .appendTo( this ); } } });// .trigger( 'close' ).trigger( 'open' ); */ } }); $( '.revisiondiffcontainer' ).removeClass( 'comparetwo' ); } else { // comparing more than one, eg 2 // set up the slider with two handles slider.slider({ values: [ REVAPP._leftDiff, REVAPP._rightDiff + 1 ], min: 1, max: modelcount + 1, step: 1, range: true, // in two handled mode when user starts dragging, swap in precalculated diff for handle start: function(event, ui ) { var index = $( ui.handle ).index(); // 0 (left) or 1 (right) switch ( index ) { case 1: // left handle drag if ( REVAPP._leftModelLoading ) // left model still loading, prevent sliding left handle return false; REVAPP._revisionView.draggingLeft = true; if ( REVAPP._revisionView.model !== REVAPP._leftHandleRevisions && null !== REVAPP._leftHandleRevisions ) { REVAPP._revisionView.model = REVAPP._leftHandleRevisions; REVAPP._tickmarkView.model = REVAPP._leftHandleRevisions; REVAPP._tickmarkView.render(); } REVAPP._leftDiffStart = ui.values[ 0 ]; break; case 2: // right if ( REVAPP._rightModelLoading || 0 === REVAPP._rightHandleRevisions.length) // right model still loading, prevent sliding right handle return false; if ( REVAPP._revisionView.model !== REVAPP._rightHandleRevisions && null !== REVAPP._rightHandleRevisions ) { REVAPP._revisionView.model = REVAPP._rightHandleRevisions; REVAPP._tickmarkView.model = REVAPP._rightHandleRevisions; REVAPP._tickmarkView.render(); } REVAPP._revisionView.draggingLeft = false; REVAPP._rightDiffStart = ui.values[1]; break; } }, // when sliding in two handled mode change appropriate value slide: function( event, ui ) { if ( ui.values[0] === ui.values[1] ) // prevent compare to self return false; var index = $( ui.handle ).index(); // 0 (left) or 1 (right) switch ( index ) { case 1: // left if ( REVAPP._leftModelLoading ) // left model still loading, prevent sliding left handle return false; REVAPP._leftDiff = ui.values[0]; break; case 2: // right if ( REVAPP._rightModelLoading ) // right model still loading, prevent sliding right handle return false; REVAPP._rightDiff = ui.values[1]; break; } if ( 0 === REVAPP._leftDiff ) { $( '.revisiondiffcontainer' ).addClass( 'currentversion' ); } else { $( '.revisiondiffcontainer' ).removeClass( 'currentversion' ); } REVAPP._revisionView.render(); }, // when the user stops sliding in 2 handle mode, recalculate diffs stop: function( event, ui ) { if ( 2 === REVAPP._compareOneOrTwo ) { // calculate and generate a diff for comparing to the left handle // and the right handle, swap out when dragging var index = $( ui.handle ).index(); // 0 (left) or 1 (right) switch ( index ) { case 1: // left // left handle dragged & changed, reload right handle model if ( REVAPP._leftDiffStart !== ui.values[0] ) REVAPP.reloadRight(); break; case 2: // right // REVAPP._rightDiff = ( 1 >= REVAPP._rightDiff ) ? 1 : REVAPP._rightDiff - 1; // right handle dragged & changed, reload left handle model if changed if ( REVAPP._rightDiffStart !== ui.values[1] ) REVAPP.reloadLeft(); break; } } } }); $( '.revisiondiffcontainer' ).addClass( 'comparetwo' ); $( '#diffslider a.ui-slider-handle' ).first().addClass( 'left-handle' ).next().addClass( 'right-handle' ); } return this; }, // next and previous buttons, only available in compare one mode events: { 'click #next': 'nextRevision', 'click #previous': 'previousRevision' }, // go to the next revision nextRevision: function() { if ( REVAPP._rightDiff < this.model.length ) // unless at right boundry REVAPP._rightDiff = REVAPP._rightDiff + 1 ; REVAPP._revisionView.render(); $( '#slider' ).slider( 'value', REVAPP._rightDiff - 1 ).trigger( 'slide' ); }, // go the the previous revision previousRevision: function() { if ( REVAPP._rightDiff > 1 ) // unless at left boundry REVAPP._rightDiff = REVAPP._rightDiff - 1 ; REVAPP._revisionView.render(); $( '#slider' ).slider( 'value', REVAPP._rightDiff - 1 ).trigger( 'slide' ); } }) }); // instantiate Revision Application REVAPP = new wp.revisions.App(); }(jQuery));