Ext.ux.touch.ListPullRefresh

**mvoss** · 30 Jun 2011, 10:09 AM

Hi,

thank you for continuing to work on this but this is implemented in Sencha Touch now. Have a look at the documentation:

http://dev.sencha.com/deploy/touch/docs/

search for ListPagingPlugin.

Regards,
Markus

**VinylFox** · 1 Jul 2011, 10:49 AM

Yeah, look at the dates.

**justinKohactive** · 18 Nov 2011, 4:04 PM

https://github.com/j-mcnally/Sencha2-PullToRefresh

Based on your great plugin

**marceloverdijk** · 19 Jan 2012, 4:40 AM

Will this plugin be available in Sencha Touch 2.0? I can't see it preview3.

**Steffen Hiller** · 19 Jan 2012, 6:45 AM

Check src/plugin/PullRefresh.js

Looking at it right now.

**justinKohactive** · 19 Jan 2012, 12:18 PM

I have ported this:

https://github.com/j-mcnally/Sencha2-PullToRefresh

**openxtiger** · 30 Jan 2012, 5:30 PM

Originally Posted by SimonFlack

This plugin was just what I needed. Although I needed it for paging.

Here is my modified version.

Plugin:

Code:

mobile.plugins.ListPullPager = ...

That great! but had some bugs,i modify and extend it!

Usage:

Code:

plugins: ["listpager"]

Code:

plugins: ["listpullpager"]

Code:

plugins: [{ptype:"listpullpager",isAutoButtons:false}]

Plugin:

Code:

Ext.plugins.ListPaging = Ext.extend(Ext.util.Observable, {
    isAutoButtons:true,
    init:function (list) {
        this.store = list.store;


        list.load = this.load;
        if (this.isAutoButtons) {
            list.prevBtn = this.prevBtn = new Ext.Button({text:"1", handler:this.onPrevTap, ui:"back", scope:this});
            list.nextBtn = this.nextBtn = new Ext.Button({text:"1", handler:this.onNextTap, ui:"forward", scope:this});
            list.reloadBtn = this.reloadBtn = new Ext.Button({iconMask:true,ui:'plain',iconCls:'refresh',handler:this.onRefreshAction, scope:this});
        }
        this.store.on("load", this.handleStoreLoad, this);
    },
    onPrevTap:function () {
        this.loadPage(-1);
    },
    onNextTap:function () {
        this.loadPage(1);
    },
    onRefreshAction:function() {
        this.loadPage(0);
    },
    handlePrevPage:function () {
        this.loadPage(-1);
    },
    handleNextPage:function () {
        this.loadPage(1);
    },
    reload:function () {
        this.loadPage(0);
    },
    load:function() {
        var store = this.store;
        store.currentPage = 1;
        store.baseParams["start"] = 0;
        store.baseParams["limit"] = this.store.pageSize;
        store.load({params:this.store.baseParams});
    },
    loadPage:function (cpage) {
        var store = this.store;
        var totalNum = this.getTotalRecs();
        var numPages = Math.ceil(totalNum / store.pageSize);
        var page = this.store.currentPage + cpage;
        if (page < 1) {
            page = 1;
        }
        if (page > numPages) {
            page = numPages;
        }
        store.currentPage = page;
        store.baseParams["start"] = (page - 1) * this.store.pageSize;
        store.baseParams["limit"] = this.store.pageSize;
        store.load({params:this.store.baseParams});
    },
    getTotalPage:function () {
        var store = this.store;
        var totalNum = this.getTotalRecs();
        return Math.ceil(totalNum / store.pageSize);
    },
    getTotalRecs:function () {
        var store = this.store;
        var proxy = store.getProxy();
        var reader = proxy.getReader();
        return reader.getTotal(reader.rawData);
    },
    handleStoreLoadBtn:function (store, pageMatch) {
        var currentPage = store.currentPage;
        if (currentPage > 1) {
            this.prevBtn.setText((currentPage - 1) + "/" + pageMatch);
            this.prevBtn.enable();
        } else {
            this.prevBtn.setText(pageMatch == 0 ? 0 : 1);
            this.prevBtn.disable();
        }
        if (currentPage < pageMatch - 1) {
            this.nextBtn.setText((currentPage + 1) + "/" + pageMatch);
            this.nextBtn.enable();
        } else {
            this.nextBtn.setText(pageMatch);
            this.nextBtn.disable();
        }
    },
    handleStoreLoad:function (store, recs, success) {
        if (success) {
            var totalNum = this.getTotalRecs();
            var numPages = Math.ceil(totalNum / store.pageSize);
            if (store.currentPage > numPages) store.currentPage = numPages;
            if (store.currentPage < 1) store.currentPage = 1;
            if (this.isAutoButtons) {
                this.handleStoreLoadBtn(store, numPages);
            }
        }
    }
});


Ext.preg('listpager', Ext.plugins.ListPaging);

Code:

Ext.apply(Ext.anims, {
    rotate: new Ext.Anim({
        autoClear: false,
        out: false,
        before: function(el) {
            var d = '';
            if (this.dir == 'ccw') {
                d = '-';
            }


            this.from = {
                '-webkit-transform': 'rotate(' + d + '' + this.fromAngle + 'deg)'
            };


            this.to = {
                '-webkit-transform': 'rotate(' + d + '' + this.toAngle + 'deg)'
            };


        }
    })
});

Code:

Ext.plugins.ListPullPager = Ext.extend(Ext.plugins.ListPaging, {
    langPullPrevious: 'Pull down to load {0} of {1},total {2}',
    pullPreviousText: 'Pull down to load previous...',
    langReleasePrevious: 'Release to load previous...',
    langPullNext: 'Pull up to load page {0} of {1} ,total {2}',
    pullNextText: 'Pull up to load next...',
    langReleaseNext: 'Release to load next...',
    langLoading: 'Loading...',


    loading: false,
    // private
    init: function(list) {
        this.list = list;
        this.lastUpdated = new Date();
        list.loadingText = undefined;
        list.on('render', this.initPullHandler, this);
        Ext.plugins.ListPullPager.superclass.init.apply(this, arguments);
    },
    // private
    initPullHandler: function() {
        //Previous
        this.previousTpl = new Ext.XTemplate(
            '<div class="x-list-pullprevpage">',
            '<div class="x-list-pullprevpage-arrow"></div>',
            '<div class="x-list-pullrefresh-wrap">',
            '<h3 class="x-list-pullrefresh-message">{m}</h3>',
            '<div class="x-list-pullrefresh-updated">Last Updated: <span>{l:date("m/d/Y h:iA")}</span></div>',
            '</div>',
            '</div>'
        );
        this.previousEl = this.previousTpl.insertBefore(this.list.scroller.el,
            {m:this.pullPreviousText,l:this.lastUpdated}, true);
        this.previousEl.hide();


        Ext.Element.cssTranslate(this.previousEl, {x:0, y:-75});


        //Next
        this.nextTpl = new Ext.XTemplate(
            '<div class="x-list-pullnextpage">',
            '<div class="x-list-pullnextpage-arrow"></div>',
            '<div class="x-list-pullrefresh-wrap">',
            '<h3 class="x-list-pullrefresh-message">{m}</h3>',
            '<div class="x-list-pullrefresh-updated">Last Updated: <span>{l:date("m/d/Y h:iA")}</span></div>',
            '</div>',
            '</div>'
        );
        this.nextEl = this.nextTpl.insertAfter(this.list.scroller.el,
            {m:this.pullNextText,l:this.lastUpdated}, true);
        this.nextEl.hide();
        Ext.Element.cssTranslate(this.nextEl, {x:0, y:-90});




        this.list.scroller.on('offsetchange', this.handleOffsettChange, this);
    },


    handleOffsettChange: function(scroller, offset) {
        if (scroller.direction === 'vertical' && !this.loading) {


            var heightOfList = scroller.size.height - scroller.containerBox.height;


            if (offset.y > 0) {
                //console.log('up:'+offset);
                this.handlePrevious(scroller, offset, heightOfList);
            }


            if (offset.y < (heightOfList * -1)) {
                //console.log('down:'+offset);
                this.handleNext(scroller, offset, heightOfList);
            }
        }
    },


    //private
    handlePrevious: function(scroller, offset, heightOfList) {
        if (scroller.direction === 'vertical' && !this.loading) {
            if (offset) {
                Ext.Element.cssTranslate(this.previousEl, {x:0, y:offset.y - 76});


                if (offset.y > 90) {
                    // state 1
                    if (this.state !== 1) {
                        this.prevState = this.state;
                        this.state = 1;
                        this.previousTpl.overwrite(this.previousEl, {m:this.langReleasePrevious,l:this.lastUpdated});
                        Ext.Anim.run(this.previousEl.select('.x-list-pullprevpage-arrow').first(), 'rotate', {dir:'ccw',fromAngle:0,toAngle:180});
                    }
                } else if (!scroller.isDragging()) {
                    // state 3
                    if (this.state !== 3) {
                        this.prevState = this.state;
                        this.state = 3;
                        this.previousEl.hide();
                        if (this.prevState == 1) {
                            this.loading = true;
                            this.lastUpdated = new Date();
                            this.loadPage(-1);
                            this.callback = this.previousComplete();
                        }
                    }
                } else {
                    // state 2
                    if (this.state !== 2) {
                        this.prevState = this.state;
                        this.state = 2;
                        this.previousTpl.overwrite(this.previousEl, {m:this.pullPreviousText,l:this.lastUpdated});
                        this.previousEl.show();
                        if (this.prevState == 1) {
                            Ext.Anim.run(this.previousEl.select('.x-list-pullprevpage-arrow').first(), 'rotate', {dir:'cw',fromAngle:180,toAngle:0});
                        }
                    }
                }
            }
        }
    },
    handleNext: function(scroller, offset, heightOfList) {
        if (scroller.direction === 'vertical' && !this.loading) {
            if (offset) {
                Ext.Element.cssTranslate(this.nextEl, {x:0, y:offset.y});


                if (offset.y < ((heightOfList + 90) * -1)) {
                    // state 1
                    if (this.state !== 1) {
                        this.nextState = this.state;
                        this.state = 1;
                        this.nextTpl.overwrite(this.nextEl, {m:this.langReleaseNext,l:this.lastUpdated});
                        Ext.Anim.run(this.nextEl.select('.x-list-pullnextpage-arrow').first(), 'rotate', {dir:'ccw',fromAngle:180,toAngle:0});
                    }
                } else if (!scroller.isDragging()) {
                    // state 3
                    if (this.state !== 3) {
                        this.nextState = this.state;
                        this.state = 3;
                        this.nextEl.hide();
                        if (this.nextState == 1) {
                            this.loading = true;
                            this.lastUpdated = new Date();
                            this.loadPage(1);
                            this.callback = this.nextComplete();
                        }
                    }
                } else {
                    // state 2
                    if (this.state !== 2) {
                        this.nextState = this.state;
                        this.state = 2;
                        this.nextTpl.overwrite(this.nextEl, {m:this.pullNextText,l:this.lastUpdated});
                        this.nextEl.show();
                        if (this.nextState == 1) {
                            Ext.Anim.run(this.nextEl.select('.x-list-pullnextpage-arrow').first(), 'rotate', {dir:'cw',fromAngle:0,toAngle:180});
                        }
                    }
                }
            }
        }
    },
    //private
    previousComplete: function() {
        this.loading = false;
        this.lastUpdated = new Date();
        this.previousTpl.overwrite(this.previousEl, {m:this.pullPreviousText,l:this.lastUpdated});
    },
    nextComplete: function() {
        this.loading = false;
        this.lastUpdated = new Date();
        this.nextTpl.overwrite(this.nextEl, {m:this.pullNextText,l:this.lastUpdated});
    },
    handleStoreLoad:function (store, recs, success) {
        Ext.plugins.ListPullPager.superclass.handleStoreLoad.apply(this, arguments);
        var totalNum = this.getTotalRecs();
        var numPages = Math.ceil(totalNum / store.pageSize);
        if (store.currentPage > numPages) store.currentPage = numPages;
        if (store.currentPage < 1) store.currentPage = 1;
        var c = store.currentPage;
        this.pullPreviousText = Ext.util.Format.format(this.langPullPrevious, c > 1 ? c - 1 : 1, numPages, totalNum);
        this.pullNextText = Ext.util.Format.format(this.langPullNext, c < numPages ? c + 1 : numPages, numPages, totalNum);
        if (this.callback) {
            this.callback();
        }


    }
});


Ext.preg('listpullpager', Ext.plugins.ListPullPager);

CSS

Code:

.x-list-pullprevpage {
    display: -webkit-box;
    display: box;
    -webkit-box-orient: horizontal;
    box-orient: horizontal;
    -webkit-box-align: center;
    box-align: center;
    -webkit-box-pack: center;
    box-pack: center;
    left: 0;
    width: 100%;
    height: 0
}
.x-list-pullnextpage {
    display: -webkit-box;
    display: box;
    -webkit-box-orient: horizontal;
    box-orient: horizontal;
    -webkit-box-align: center;
    box-align: center;
    -webkit-box-pack: center;
    box-pack: center;
    position: absolute;
    left: 0;
    width: 100%;
    height: 0
}


.x-list-pullrefresh-message {
    font-weight: bold;
    font-size: 1.0em;
    margin-bottom: 0.1em;
    text-align: center
}


.x-list-pullprevpage-arrow {
    width: 2.5em;
    height: 3.0em;
    -webkit-mask: center center url('data:image/png;base64,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') no-repeat;
    -webkit-mask-size: 2em 3em;
    -webkit-transform: rotate(0deg);
    background-color: #111
}


.x-list-pullnextpage-arrow {
    width: 2.5em;
    height: 3.0em;
    -webkit-mask: center center url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACgAAAA8CAYAAAAUufjgAAAAAXNSR0IArs4c6QAAAAZiS0dEAP8A/wD/oL2nkwAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB9wBHwEEFZRBU1UAAAI7SURBVGje7dq/a5NRFMbxz6ttHSym4CK4+A8UtZPugpOrqKNiETqIq2tB3EQoIgjiIhZdCoIguLu1SkGFLi6Cmz+KQ432OvQGXjRN75vcN4ltDpwpL9xvnvecc885SRFCMMy2z5DbGBRFkfr8/kzn/k55KISwBZhoRUbATYRkBasqnsGadRyYU8GiLgXHB5IkFb71WEYF7UkFx0cKtiuGw2ohhP/kqku0CRzPdO5b/KwjSSaGOUmGHlBGwNrq4IF+KzgqM/18xQdxPtO5T/FjV8TgrgOcGGXxbs7iKdzMdO4tfN2TzcLAsvgEGgmFOhfgqYRC/Q1vWoAbuKJ/y6RLCauR22UF32MJF4ckeZ/g3d8xuIRpzAwYbjmybAVrCKG8fmvgHg4PCO4LrsX4E0L4B1BU8Y7+Lzc3cQOr5ZukXZlZxaP4Tfpp98tw273ist3F6T7Bvcb1dndxJ8AGFnGkZrjPuNCKuyqAYkY/rHEn08TlmLlddTPLWIiAdfjCdnApMVi2BziTWb1XuLpTP5gKOIWXOJoJ7hPO7tRyVQGEk3ieIR6bOIeV3B31Cubj9diLz6fAVY3Bsj2OCnRjL2JJSZ5JugE8FAvrsYpwH2Ph/15poOtyqpvBeuwjU3y9my6pF0CYw69En+t27Ox1Ll609ZNWJ3/Wy1zcK2ADax3g1hJmnVoBWwPXRhu4jfiZQQPCbBvA2Ryrj5y7mXI8LubazeQEnMSH6JPDCNiaZ6ZzbreK0d9SRoAjwM72B0xIAaqN33EkAAAAAElFTkSuQmCC') no-repeat;
    -webkit-mask-size: 2em 3em;
    -webkit-transform: rotate(180deg);
    background-color: #111
}

**anthonyterrell** · 20 Jun 2012, 12:16 PM

Hello Everyone,

I'm currently attempting to apply this plugin to a list in which accesses the Twitter API. My question is, if there is a PullRefresh.js, why do we need a plugin to do this? I understand that the Sencha developers are trying to watch the build size, so does this mean they are simply adding a place holder for an optional plugin?

I followed the Readme for the Sencha Touch 2 port of the pull to refresh plugin and am receiving this error. Wasn't sure if anyone could shed some light on what may be happening.

Code:

TypeError: 'undefined' is not a constructor (evaluating 'new Ext.Anim')
Failed to load resource: The requested URL was not found on this server.
Error: [Ext.Loader] Failed loading 'sdk/src/ux/kohactive/RefreshableList.js', please verify that the file exists

Thanks!

**akarsh478** · 20 Jul 2012, 2:43 AM

very nice, very helpful. But can someone help me how can I use this plugin to implement the same pull to refresh for bottom of the list? Thanks in advance guys.

Thread: Ext.ux.touch.ListPullRefresh

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