Is it possible to display a working progress bar or spinner when a State is Selected ?

Is it possible to display a working progress bar or spinner when a State is Selected ?

desperadodesperado Posts: 159Questions: 33Answers: 4

I have a table which has 8000 rows. I am using search builder and state restore.

When select a state which limits the data to 3600 of the 8000 it takes about 6 seconds for the menu to drop after I make the selection.

Is it possible to display some working indicator once a state is selected and drop it when the menu drops ?

Answers

  • kthorngrenkthorngren Posts: 17,238Questions: 25Answers: 4,090

    There is this thread that might help. Doesn't look like a complete solution was posted but maybe it will give you some ideas.

    Kevin

  • desperadodesperado Posts: 159Questions: 33Answers: 4
    edited June 9

    @kthorngren Thanks that's a nice pluggin and good to see another user needs the same thing but so far I am unable to find a place to start and stop the processing pluggin. The display wan't really the issue it's finding hooks to do it.

    I thought I could use the stateRestore-change event but that is not triggered on selection of a state.

  • desperadodesperado Posts: 159Questions: 33Answers: 4
    edited June 10

    @sandy Is the StateRestore menu supposed to drop "before" the state loads? I have a problem because it doesn't lower until after and the load is taking over 6 seconds for a large data set with seachBuilder (8000 rows).

    Looking at the code I think you do try to lower the menu but it doesn't seem to work. Clicking on the background doesn't seem to close the stateRestore state selection window.

            StateRestore.prototype.load = function () {
                var _this = this;
                var loadedState = this.s.savedState;
                var settings = this.s.dt.settings()[0];
    
                // Always want the states stored here to be loaded in - regardless of when they were created
                loadedState.time = +new Date();
                settings.oLoadedState = $$1.extend(true, {}, loadedState);
                // Click on a background if there is one to shut the collection
                $$1('div.dt-button-background').click();
    

    If the menu is expected to close when the load is done then can you provide a hook to start a processing display before the load starts and another when the load is done ?

    I tried hacking your js code and adding my show and hide of my processing image.

    $.fn.dataTable.ext.buttons.stateRestore = {
                action: function (e, dt, node, config) {
                    // HACK TO SEE IF I CAN DISPLAY A LOADING SPINNER
                    // WHY DOES THIS ONLY WORK IF I BREAK IN DEBUGGER AND STEP?
                    // IF I don't break or I just resume after the console.log then
                    // my processing spinner doesn't work.   But if I do break and 
                    // step and then continue it shows my processing spinner for the 
                    // 6 seconds load takes.
                    console.log("stateRestore Load Started");
                    // Must step over this line for it to work, otherwise nothing happens
                    $('#loading').show();
                    // HACK END PART 1
    
                    config._stateRestore.load();
    
                    // HACK TO SEE IF I CAN DISPLAY A LOADING SPINNER
                    console.log("stateRestore Load Started");
                    $('#loading').hide();
                    // HACK END PART 2
    
                    node.blur();
                },
    
  • desperadodesperado Posts: 159Questions: 33Answers: 4

    @Sandy I was able to get my processing spinner working by adding two events in your code. stateRestore-load-start and stateRestore-load-end.

    For this to work I needed to issue the start and then set a timeout to start the load processing so the spinner could display before the load started, without the timeout the show on the spinner doesn't happen.

    This is where I placed the trigger of the events.

                action: function (e, dt, node, config) {
                    // Send load start event to allow for a "processing" display 
                    $$1(dt.table().node()).trigger('stateRestore-load-start');
                    // Wrap the load in a timeout to allow the "processing" display to happen
                    setTimeout(function() {
                        config._stateRestore.load();
                        node.blur();
                        // Send load end event to allow for the removal of "processing" display
                        $$1(dt.table().node()).trigger('stateRestore-load-end');
                    },50);
                },
                config: {
                    split: ['updateState', 'renameState', 'removeState']
                },
    

    Would you be able to add this to the base code. There are others with this same issue so I think it would be helpful.

    If you are willing to add this then I think you would need to add the events here as well. Although I guess the user of the api could just implement the processing start, timeout call to load and processing end. Your call....

    apiRegister('stateRestore.state().load()', function () {
                var ctx = this[0];
                ctx.load();
                return this;
            });
    
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