mirror of
https://github.com/WordPress/WordPress.git
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51db623107
Various Updates including: * i18n fixes * Added tracking of what revision ID was restored * async fetching of diffs so that slider works sooner even with many revisions See #23497 props adamsilverstein, ethitter git-svn-id: http://core.svn.wordpress.org/trunk@23639 1a063a9b-81f0-0310-95a4-ce76da25c4cd
599 lines
18 KiB
JavaScript
599 lines
18 KiB
JavaScript
window.wp = window.wp || {};
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(function($) {
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wp.revisions = {
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views : {},
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Model : Backbone.Model.extend({
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idAttribute : 'ID',
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urlRoot : ajaxurl + '?action=revisions-data&compare_to=' + wpRevisionsSettings.post_id +
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'&show_autosaves=false&show_split_view=true&nonce=' + wpRevisionsSettings.nonce,
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defaults: {
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ID : 0,
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revision_date_author : '',
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revisiondiff : '<div class="diff-loading"><div class="spinner"></div></div>',
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restoreaction : '',
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revision_from_date_author : '',
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revision_toload : false
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},
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url : function() {
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return this.urlRoot + '&single_revision_id=' + this.id;
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}
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}),
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app: _.extend({}, Backbone.Events),
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App : Backbone.Router.extend({
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_revisionDifflView : null,
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_revisions : null,
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_left_handle_revisions : null,
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_right_handle_revisions : null,
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_revisionsInteractions : null,
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_revisionsOptions : null,
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_left_diff : 0,
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_right_diff : 1,
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_autosaves : false,
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_show_split_view : true,
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_compareoneortwo : 1,
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_left_model_loading : false, //keep track of model loads
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_right_model_loading : false, //disallow slider interaction, also repeat loads, while loading
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//TODO add ability to arrive on specific revision
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routes : {
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},
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viewrevision : function( revision ) {
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//coming soon
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},
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reload_toload_revisions : function( model_collection, reverse_direction ) {
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var self = this;
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var revisions_to_load = model_collection.where( { revision_toload : true } );
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//console.log(revisions_to_load);
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var delay=0;
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_.each(revisions_to_load, function( the_model ) {
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the_model.urlRoot = model_collection.url;
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_.delay( function() {
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the_model.fetch( {
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update : true,
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add : false,
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remove : false,
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//async : false,
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success : function( model ) {
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//console.log(model.get( 'ID' ) +'-'+self._revisions.at( self._right_diff ).get( 'ID' ));
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if ( model.get( 'ID' ) === self._revisions.at( self._right_diff - 1 ).get( 'ID' ) ) { //reload if current model refreshed
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//console.log('render');
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self._revisionView.render();
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}
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}
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} );
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}, delay ) ;
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delay = delay + 200; //stagger model loads by 200 ms to avoid hammering server with requests
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}
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);
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},
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start_left_model_loading : function() {
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this._left_model_loading = true;
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$('.revisiondiffcontainer').addClass('leftmodelloading');
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},
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stop_left_model_loading : function() {
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this._left_model_loading = false;
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$('.revisiondiffcontainer').removeClass('leftmodelloading');
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},
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start_right_model_loading : function() {
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this._right_model_loading = true;
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$('.revisiondiffcontainer').addClass('rightmodelloading');
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},
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stop_right_model_loading : function() {
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this._right_model_loading = false;
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$('.revisiondiffcontainer').removeClass('rightmodelloading');
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},
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reloadmodel : function() {
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if ( 2 === this._compareoneortwo ) {
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this.reloadleftright();
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} else {
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this.reloadmodelsingle();
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}
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},
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reloadmodelsingle : function() {
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var self = this;
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self._revisions.url = ajaxurl + '?action=revisions-data&compare_to=' + wpRevisionsSettings.post_id +
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'&show_autosaves=' + self._autosaves +
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'&show_split_view=' + REVAPP._show_split_view +
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'&nonce=' + wpRevisionsSettings.nonce;
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self.start_right_model_loading();
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this._revisions.fetch({ //reload revision data
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success : function() {
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self.stop_right_model_loading();
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var revisioncount = self._revisions.length;
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if ( self._right_diff > revisioncount ) //if right handle past rightmost, move
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self._right_diff = revisioncount;
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self._revisionView.render();
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self.reload_toload_revisions( self._revisions );
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$( '#slider' ).slider( 'option', 'max', revisioncount-1 ); //TODO test this, autsaves changed
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},
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error : function () {
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self.stop_right_model_loading();
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//console.log( 'Error loading revision data' );
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}
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});
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},
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reloadleft : function() {
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var self = this;
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self.start_left_model_loading();
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self._left_handle_revisions = new wp.revisions.Collection();
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self._left_handle_revisions.url =
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ajaxurl +
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'?action=revisions-data&compare_to=' + self._revisions.at( self._right_diff - 1 ).get( 'ID' ) +
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'&post_id=' + wpRevisionsSettings.post_id +
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'&show_autosaves=' + self._autosaves +
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'&show_split_view=' + self._show_split_view +
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'&nonce=' + wpRevisionsSettings.nonce +
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'&right_handle_at=' + ( self._right_diff );
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self._left_handle_revisions.fetch({
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success : function(){
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self.stop_left_model_loading();
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self.reload_toload_revisions( self._left_handle_revisions );
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},
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error : function () {
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//console.log( 'Error loading revision data' );
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self.stop_left_model_loading();
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}
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});
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},
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reloadright : function() {
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var self = this;
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self.start_right_model_loading();
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self._right_handle_revisions = new wp.revisions.Collection();
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if ( 0 === self._left_diff ) {
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self._right_handle_revisions.url =
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ajaxurl +
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'?action=revisions-data&compare_to=' + wpRevisionsSettings.post_id +
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'&post_id=' + wpRevisionsSettings.post_id +
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'&show_autosaves=' + self._autosaves +
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'&show_split_view=' + self._show_split_view +
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'&nonce=' + wpRevisionsSettings.nonce;
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} else {
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self._right_handle_revisions.url =
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ajaxurl +
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'?action=revisions-data&compare_to=' + self._revisions.at( self._left_diff - 1 ).get( 'ID' ) +
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'&post_id=' + wpRevisionsSettings.post_id +
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'&show_autosaves=' + self._autosaves +
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'&show_split_view=' + self._show_split_view +
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'&nonce=' + wpRevisionsSettings.nonce +
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'&left_handle_at=' + (self._left_diff ) ;
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}
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self._right_handle_revisions.fetch({
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success : function(){
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self.stop_right_model_loading();
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self.reload_toload_revisions( self._right_handle_revisions );
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},
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error : function ( response ) {
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//console.log( 'Error loading revision data - ' + response.toSource() );
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self.stop_right_model_loading();
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}
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});
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},
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reloadleftright : function() {
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this.reloadleft();
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this.reloadright();
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},
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/*
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* initialize the revision application
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*/
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initialize : function( options ) {
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var self = this; //store the application instance
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if (this._revisions === null) {
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self._autosaves = '';
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self._revisions = new wp.revisions.Collection(); //set up collection
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self.start_right_model_loading();
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self._revisions.fetch({ //load revision data
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success : function() {
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self.stop_right_model_loading();
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self.revisionDiffSetup();
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}
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});
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}
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return this;
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},
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revisionDiffSetup : function() {
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this._revisionView = new wp.revisions.views.View({
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model : this._revisions
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});
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this._revisionView.render();
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$( '#diff_max, #diff_maxof' ).html( this._revisions.length );
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$( '#diff_count' ).html( REVAPP._right_diff );
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$( '#slider' ).slider( 'option', 'max', this._revisions.length - 1 );
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this.reload_toload_revisions( this._revisions );
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this._revisionsInteractions = new wp.revisions.views.Interact({
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model : this._revisions
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});
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this._revisionsInteractions.render();
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/*
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//Options hidden for now, moving to screen options
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this._revisionsOptions = new wp.revisions.views.Options({
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model : this._revisions
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});
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this._revisionsOptions.render();
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*/
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}
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})
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};
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wp.revisions.Collection = Backbone.Collection.extend({
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model : wp.revisions.Model,
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url : ajaxurl + '?action=revisions-data&compare_to=' + wpRevisionsSettings.post_id +
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'&show_autosaves=false&show_split_view=true&nonce=' + wpRevisionsSettings.nonce,
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initialize : function() {
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}
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} );
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_.extend(wp.revisions.views, {
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//
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//primary revision diff view
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//
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View : Backbone.View.extend({
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el : $('#backbonerevisionsdiff')[0],
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tagName : 'revisionvview',
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className : 'revisionview-container',
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template : wp.template('revision'),
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revvapp : null,
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comparetwochecked : '',
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draggingleft : false,
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initialize : function(){
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},
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//
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//render the revisions
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//
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render : function() {
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var addhtml = '';
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//compare two revisions mode?
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if ( 2 === REVAPP._compareoneortwo ) {
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this.comparetwochecked = 'checked';
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if ( this.draggingleft ) {
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if ( this.model.at( REVAPP._left_diff ) ) {
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addhtml = this.template( _.extend(
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this.model.at( REVAPP._left_diff ).toJSON(),
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{ comparetwochecked : this.comparetwochecked } //keep the checkmark checked
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) );
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}
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} else { //dragging right handle
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var thediff = REVAPP._right_diff;
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if ( this.model.at( thediff ) ) {
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addhtml = this.template( _.extend(
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this.model.at( thediff ).toJSON(),
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{ comparetwochecked : this.comparetwochecked } //keep the checkmark checked
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) );
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}
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}
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} else { //end compare two revisions mode, eg only one slider handle
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this.comparetwochecked = '';
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if ( this.model.at( REVAPP._right_diff - 1 ) ) {
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addhtml = this.template( _.extend(
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this.model.at( REVAPP._right_diff - 1 ).toJSON(),
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{ comparetwochecked : this.comparetwochecked } //keep the checkmark unchecked
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) );
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}
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}
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this.$el.html( addhtml );
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if ( this.model.length < 3 ) {
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$( 'div#comparetworevisions' ).hide(); //don't allow compare two if fewer than three revisions
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}
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//console.log ( (this.model.at( REVAPP._right_diff - 1 )).url());
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return this;
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},
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//the compare two button is in this view, add the interaction here
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events : {
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'click #comparetwo' : 'clickcomparetwo'
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},
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//
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//turn on/off the compare two mmode
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//
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clickcomparetwo : function(){
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self = this;
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if ( $( 'input#comparetwo' ).is( ':checked' ) ) {
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REVAPP._compareoneortwo = 2 ;
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REVAPP.reloadleftright();
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} else {
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REVAPP._compareoneortwo = 1 ;
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REVAPP._revisionView.draggingleft = false;
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REVAPP._left_diff = 0;
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REVAPP.reloadmodelsingle();
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}
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REVAPP._revisionsInteractions.render();
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}
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}),
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//
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//options view for show autosaves and show split view options
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//
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Options : Backbone.View.extend({
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el : $('#backbonerevisionsoptions')[0],
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tagName : 'revisionoptionsview',
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className : 'revisionoptions-container',
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template : wp.template('revisionoptions'),
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initialize : function() {
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},
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//render the options view
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render : function() {
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var addhtml = this.template;
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this.$el.html( addhtml );
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return this;
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},
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//add options interactions
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events : {
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'click #toggleshowautosaves' : 'toggleshowautosaves',
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'click #showsplitview' : 'showsplitview'
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},
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//
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//toggle include autosaves
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//
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toggleshowautosaves : function() {
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var self = this;
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if ( $( '#toggleshowautosaves' ).is( ':checked' ) ) {
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REVAPP._autosaves = true ;
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} else {
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REVAPP._autosaves = false ;
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}
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//refresh the model data
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REVAPP.reloadmodel();
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},
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//
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//toggle showing the split diff view
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//
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showsplitview : function() {
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var self = this;
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if ( $( 'input#showsplitview' ).is( ':checked' ) ) {
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REVAPP._show_split_view = 'true';
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$('.revisiondiffcontainer').addClass('diffsplit');
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} else {
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REVAPP._show_split_view = '';
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$('.revisiondiffcontainer').removeClass('diffsplit');
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}
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REVAPP.reloadmodel();
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}
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}),
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//
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//main interactions view
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//
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Interact : Backbone.View.extend({
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el : $('#backbonerevisionsinteract')[0],
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tagName : 'revisionvinteract',
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className : 'revisionvinteract-container',
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template : wp.template('revisionvinteract'),
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_restoreword : '',
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initialize : function() {
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this._restoreword = $( 'input#restore' ).attr( 'value' );
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},
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reset_restore_button : function() {
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$( 'input#restore' ).attr( 'value', this._restoreword + ' ' + REVAPP._revisions.at( REVAPP._right_diff - 1 ).get( 'ID' ) );
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},
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render : function() {
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var self = this;
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var addhtml = this.template;
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this.$el.html( addhtml );
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$( '#diff_max, #diff_maxof' ).html( this.model.length );
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$( '#diff_count' ).html( REVAPP._right_diff );
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$( '#diff_left_count_inner' ).html( 0 === REVAPP._left_diff ? '' : 'revision' + REVAPP._left_diff );
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self.reset_restore_button();
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var modelcount = REVAPP._revisions.length;
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slider = $( "#slider" );
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if ( 1 === REVAPP._compareoneortwo ) {
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//set up the slider with a single handle
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slider.slider({
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value : REVAPP._right_diff-1,
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min : 0,
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max : modelcount-1,
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step : 1,
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//slide interactions for one handles slider
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slide : function( event, ui ) {
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if ( REVAPP._right_model_loading ) //left model stoll loading, prevent sliding left handle
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return false;
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REVAPP._right_diff =( ui.value+1 );
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$( '#diff_count' ).html( REVAPP._right_diff );
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REVAPP._revisionView.render();
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self.reset_restore_button();
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}
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});
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$( '.revisiondiffcontainer' ).removeClass( 'comparetwo' );
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} else { //comparing more than one, eg 2
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//set up the slider with two handles
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slider.slider({
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values : [ REVAPP._left_diff, REVAPP._right_diff + 1 ],
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min : 1,
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max : modelcount+1,
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step : 1,
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range: true,
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//in two handled mode when user starts dragging, swap in precalculated diff for handle
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start : function (event, ui ) {
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var index = $( ui.handle ).index(); //0 (left) or 1 (right)
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switch ( index ) {
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case 1: //left handle drag
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if ( REVAPP._left_model_loading ) //left model stoll loading, prevent sliding left handle
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return false;
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if ( REVAPP._revisionView.model !== REVAPP._left_handle_revisions &&
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null !== REVAPP._left_handle_revisions )
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REVAPP._revisionView.model = REVAPP._left_handle_revisions;
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REVAPP._revisionView.draggingleft = true;
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REVAPP._left_diff_start = ui.values[ 0 ];
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break;
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case 2: //right
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if ( REVAPP._right_model_loading ) //right model stoll loading, prevent sliding right handle
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return false;
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//one extra spot at left end when comparing two
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if ( REVAPP._revisionView.model !== REVAPP._right_handle_revisions &&
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null !== REVAPP._right_handle_revisions )
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REVAPP._revisionView.model = REVAPP._right_handle_revisions;
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REVAPP._revisionView.draggingleft = false;
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REVAPP._right_diff_start = ui.values[ 1 ];
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break;
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}
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},
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//when sliding in two handled mode change appropriate value
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slide : function( event, ui ) {
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if ( ui.values[ 0 ] === ui.values[ 1 ] ) //prevent compare to self
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return false;
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var index = $( ui.handle ).index(); //0 (left) or 1 (right)
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switch ( index ) {
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case 1: //left
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if ( REVAPP._left_model_loading ) //left model still loading, prevent sliding left handle
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return false;
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REVAPP._left_diff = ui.values[ 0 ] - 1; //one extra spot at left end when comparing two
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break;
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case 2: //right
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if ( REVAPP._right_model_loading ) //right model still loading, prevent sliding right handle
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return false;
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REVAPP._right_diff = ui.values[ 1 ] - 1 ;
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break;
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}
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$( '#diff_count' ).html( REVAPP._right_diff );
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if ( 0 === REVAPP._left_diff ) {
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$( '.revisiondiffcontainer' ).addClass( 'currentversion' );
|
|
|
|
} else {
|
|
$( '.revisiondiffcontainer' ).removeClass( 'currentversion' );
|
|
$( '#diff_left_count_inner' ).html( REVAPP._left_diff );
|
|
}
|
|
|
|
REVAPP._revisionView.render(); //render the diff view
|
|
self.reset_restore_button();
|
|
},
|
|
|
|
//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._left_diff_start === ui.values[ 0 ] || REVAPP._left_model_loading ) )
|
|
REVAPP.reloadright();
|
|
|
|
break;
|
|
|
|
case 2: //right
|
|
//right handle dragged & changed, reload left handle model if changed
|
|
if ( ! ( REVAPP._right_diff_start === ui.values[ 1 ] || REVAPP._right_model_loading ) ) {
|
|
REVAPP.reloadleft();
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
});
|
|
$( '.revisiondiffcontainer' ).addClass( 'comparetwo' );
|
|
}
|
|
|
|
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._right_diff < this.model.length ) //unless at right boundry
|
|
REVAPP._right_diff = REVAPP._right_diff + 1 ;
|
|
|
|
REVAPP._revisionView.render();
|
|
|
|
$( '#diff_count' ).html( REVAPP._right_diff );
|
|
$( '#slider' ).slider( 'value', REVAPP._right_diff - 1 ).trigger( 'slide' );
|
|
this.reset_restore_button();
|
|
},
|
|
|
|
//go the the previous revision
|
|
previousrevision : function() {
|
|
if ( REVAPP._right_diff > 1 ) //unless at left boundry
|
|
REVAPP._right_diff = REVAPP._right_diff - 1 ;
|
|
|
|
REVAPP._revisionView.render();
|
|
|
|
$( '#diff_count' ).html( REVAPP._right_diff );
|
|
$( '#slider' ).slider( 'value', REVAPP._right_diff - 1 ).trigger( 'slide' );
|
|
this.reset_restore_button();
|
|
}
|
|
})
|
|
});
|
|
|
|
//instantiate Revision Application
|
|
REVAPP = new wp.revisions.App();
|
|
//TODO consider enable back button to step back thru states?
|
|
//Backbone.history.start({pushState: true});
|
|
|
|
}(jQuery));
|