tvheadend/vendor/ext-3.4.1/examples/image-organizer/imgorg/ImageThumbPanel.js

/*
This file is part of Ext JS 3.4

Copyright (c) 2011-2013 Sencha Inc

Contact:  http://www.sencha.com/contact

GNU General Public License Usage
This file may be used under the terms of the GNU General Public License version 3.0 as
published by the Free Software Foundation and appearing in the file LICENSE included in the
packaging of this file.

Please review the following information to ensure the GNU General Public License version 3.0
requirements will be met: http://www.gnu.org/copyleft/gpl.html.

If you are unsure which license is appropriate for your use, please contact the sales department
at http://www.sencha.com/contact.

Build date: 2013-04-03 15:07:25
*/
Imgorg.ImageThumbPanel = Ext.extend(Ext.Panel, {
    minWidth: 80,
    title: 'All Photos',
    
    initComponent: function() {
        this.tfId = 'tag-filter-'+Ext.id();
        
        var sliderValue = 0;
        var p = Ext.state.Manager.getProvider();
        if (p) {
            sliderValue = Ext.num(p.get('sliderValue'), 0);
        }
        
        Ext.apply(this,{
            layout:'fit',
            cls: 'images-view',
            items:Ext.apply({
                xtype: 'img-dv',
                itemId: 'imgorg-dv'
            },this.dvConfig||{}),
            bbar:['Tags:',{
                xtype: 'img-tagmulticombo',
                id: this.tfId,
                listeners: {
                    select: function(combo, record, idx) {
                        var vals = combo.getValue();
                        this.tagFilter(vals);
                        return true;
                    },
                    clearall: function(combo) {
                        this.clearFilter();
                    },
                    scope: this
                }
            },'->',{
                xtype: 'slider',
                itemId: 'size-slider',
                width: 200,
                style: 'margin-right:20px;',
                value: sliderValue,
                plugins: new Ext.slider.Tip({
                    getText: function(slider){
                        return String.format('<b>{0}%</b>', 100+slider.getValue()*3);
                    }
                }),
                listeners: {
                    change: this.onChange,
                    scope: this
                }
            }]
        });
        Imgorg.ImageThumbPanel.superclass.initComponent.call(this);
        this.on('activate', this.onActivate, this);
    },
    
    afterRender: function() {
        Imgorg.ImageThumbPanel.superclass.afterRender.call(this);
        this.view = this.getComponent('imgorg-dv');
        (function() {
            this.dragZone = new ImageDragZone(this.view, {
                containerScroll:true,
                ddGroup: 'organizerDD'
            });
        }).defer(100, this);
    },
    
    onActivate: function() {
        this.reload();
        var p = Ext.state.Manager.getProvider();
        if (p) {
            sliderValue = Ext.num(p.get('sliderValue'), 0);
            var slider = this.getBottomToolbar().getComponent('size-slider');
            slider.setValue(sliderValue);
            this.onChange(slider);
        }
    },
    
    onChange: function(slider, e) {
        var p = Ext.state.Manager.getProvider();
        if (p) {
            p.set('sliderValue', slider.getValue());
        }
        Ext.util.CSS.updateRule('.images-view .thumb img','height',this.minWidth+slider.getValue()*3);
    },
    
    tagFilter: function(vals) {
        if (this.view.store.lastOptions.params) {
            var album = this.view.store.lastOptions.params.album;
        }
        
        this.view.store.load({
            params: {
                tags: vals,
                album: album
            }
        });
    },
    
    clearFilter: function() {
        var album = this.view.store.lastOptions.params.album;
        this.view.store.load({
            params: {
                album: album
            }
        });
        Ext.getCmp(this.tfId).reset();
    },
    
    albumFilter: function(album) {
        this.getComponent('imgorg-dv').store.load({
            params: {
                album: album.id
            }
        });
    },
    
    reload: function() {
        this.view.store.reload();
    }
});
Ext.reg('img-thumbpanel', Imgorg.ImageThumbPanel);


ImageDragZone = function(view, config){
    this.view = view;
    ImageDragZone.superclass.constructor.call(this, view.getEl(), config);
};
Ext.extend(ImageDragZone, Ext.dd.DragZone, {
    // We don't want to register our image elements, so let's 
    // override the default registry lookup to fetch the image 
    // from the event instead
    getDragData : function(e){
        var target = e.getTarget('.thumb-wrap');
        if(target){
            var view = this.view;
            if(!view.isSelected(target)){
                view.onClick(e);
            }
            var selNodes = view.getSelectedNodes();
            var dragData = {
                nodes: selNodes
            };
            if(selNodes.length == 1){
                dragData.ddel = target;
                dragData.single = true;
            }else{
                var div = document.createElement('div'); // create the multi element drag "ghost"
                div.className = 'multi-proxy';
                for(var i = 0, len = selNodes.length; i < len; i++){
                    div.appendChild(selNodes[i].firstChild.firstChild.cloneNode(true)); // image nodes only
                    if((i+1) % 3 == 0){
                        div.appendChild(document.createElement('br'));
                    }
                }
                var count = document.createElement('div'); // selected image count
                count.innerHTML = i + ' images selected';
                div.appendChild(count);
                
                dragData.ddel = div;
                dragData.multi = true;
            }
            return dragData;
        }
        return false;
    },

    // this method is called by the TreeDropZone after a node drop
    // to get the new tree node (there are also other way, but this is easiest)
    getTreeNode : function(){
        var treeNodes = [];
        var nodeData = this.view.getRecords(this.dragData.nodes);
        for(var i = 0, len = nodeData.length; i < len; i++){
            var data = nodeData[i].data;
            treeNodes.push(new Ext.tree.TreeNode({
                text: data.name,
                icon: '../view/'+data.url,
                data: data,
                leaf:true,
                cls: 'image-node'
            }));
        }
        return treeNodes;
    },
    
    // the default action is to "highlight" after a bad drop
    // but since an image can't be highlighted, let's frame it 
    afterRepair:function(){
        for(var i = 0, len = this.dragData.nodes.length; i < len; i++){
            Ext.fly(this.dragData.nodes[i]).frame('#8db2e3', 1);
        }
        this.dragging = false;    
    },
    
    // override the default repairXY with one offset for the margins and padding
    getRepairXY : function(e){
        if(!this.dragData.multi){
            var xy = Ext.Element.fly(this.dragData.ddel).getXY();
            xy[0]+=3;xy[1]+=3;
            return xy;
        }
        return false;
    }
});