CaffGeek/MBACNationals

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Web.Admin/2014/wordpress/wp-admin/js/image-edit.dev.js

Summary

Maintainability
F
3 days
Test Coverage
var imageEdit;

(function($) {
imageEdit = {
    iasapi : {},
    hold : {},
    postid : '',

    intval : function(f) {
        return f | 0;
    },

    setDisabled : function(el, s) {
        if ( s ) {
            el.removeClass('disabled');
            $('input', el).removeAttr('disabled');
        } else {
            el.addClass('disabled');
            $('input', el).attr('disabled', 'disabled');
        }
    },

    init : function(postid, nonce) {
        var t = this, old = $('#image-editor-' + t.postid),
            x = t.intval( $('#imgedit-x-' + postid).val() ),
            y = t.intval( $('#imgedit-y-' + postid).val() );

        if ( t.postid != postid && old.length )
            t.close(t.postid);

        t.hold['w'] = t.hold['ow'] = x;
        t.hold['h'] = t.hold['oh'] = y;
        t.hold['xy_ratio'] = x / y;
        t.hold['sizer'] = parseFloat( $('#imgedit-sizer-' + postid).val() );
        t.postid = postid;
        $('#imgedit-response-' + postid).empty();

        $('input[type="text"]', '#imgedit-panel-' + postid).keypress(function(e) {
            var k = e.keyCode;

            if ( 36 < k && k < 41 )
                $(this).blur()

            if ( 13 == k ) {
                e.preventDefault();
                e.stopPropagation();
                return false;
            }
        });
    },

    toggleEditor : function(postid, toggle) {
        var wait = $('#imgedit-wait-' + postid);

        if ( toggle )
            wait.height( $('#imgedit-panel-' + postid).height() ).fadeIn('fast');
        else
            wait.fadeOut('fast');
    },

    toggleHelp : function(el) {
        $(el).siblings('.imgedit-help').slideToggle('fast');
        return false;
    },

    getTarget : function(postid) {
        return $('input[name=imgedit-target-' + postid + ']:checked', '#imgedit-save-target-' + postid).val() || 'full';
    },

    scaleChanged : function(postid, x) {
        var w = $('#imgedit-scale-width-' + postid), h = $('#imgedit-scale-height-' + postid),
        warn = $('#imgedit-scale-warn-' + postid), w1 = '', h1 = '';

        if ( x ) {
            h1 = (w.val() != '') ? this.intval( w.val() / this.hold['xy_ratio'] ) : '';
            h.val( h1 );
        } else {
            w1 = (h.val() != '') ? this.intval( h.val() * this.hold['xy_ratio'] ) : '';
            w.val( w1 );
        }

        if ( ( h1 && h1 > this.hold['oh'] ) || ( w1 && w1 > this.hold['ow'] ) )
            warn.css('visibility', 'visible');
        else
            warn.css('visibility', 'hidden');
    },

    getSelRatio : function(postid) {
        var x = this.hold['w'], y = this.hold['h'],
            X = this.intval( $('#imgedit-crop-width-' + postid).val() ),
            Y = this.intval( $('#imgedit-crop-height-' + postid).val() );

        if ( X && Y )
            return X + ':' + Y;

        if ( x && y )
            return x + ':' + y;

        return '1:1';
    },

    filterHistory : function(postid, setSize) {
        // apply undo state to history
        var history = $('#imgedit-history-' + postid).val(), pop, n, o, i, op = [];

        if ( history != '' ) {
            history = JSON.parse(history);
            pop = this.intval( $('#imgedit-undone-' + postid).val() );
            if ( pop > 0 ) {
                while ( pop > 0 ) {
                    history.pop();
                    pop--;
                }
            }

            if ( setSize ) {
                if ( !history.length ) {
                    this.hold['w'] = this.hold['ow'];
                    this.hold['h'] = this.hold['oh'];
                    return '';
                }

                // restore
                o = history[history.length - 1];
                o = o.c || o.r || o.f || false;

                if ( o ) {
                    this.hold['w'] = o.fw;
                    this.hold['h'] = o.fh;
                }
            }

            // filter the values
            for ( n in history ) {
                i = history[n];
                if ( i.hasOwnProperty('c') ) {
                    op[n] = { 'c': { 'x': i.c.x, 'y': i.c.y, 'w': i.c.w, 'h': i.c.h } };
                } else if ( i.hasOwnProperty('r') ) {
                    op[n] = { 'r': i.r.r };
                } else if ( i.hasOwnProperty('f') ) {
                    op[n] = { 'f': i.f.f };
                }
            }
            return JSON.stringify(op);
        }
        return '';
    },

    refreshEditor : function(postid, nonce, callback) {
        var t = this, data, img;

        t.toggleEditor(postid, 1);
        data = {
            'action': 'imgedit-preview',
            '_ajax_nonce': nonce,
            'postid': postid,
            'history': t.filterHistory(postid, 1),
            'rand': t.intval(Math.random() * 1000000)
        };

        img = $('<img id="image-preview-' + postid + '" />');
        img.load( function() {
            var max1, max2, parent = $('#imgedit-crop-' + postid), t = imageEdit;

            parent.empty().append(img);

            // w, h are the new full size dims
            max1 = Math.max( t.hold.w, t.hold.h );
            max2 = Math.max( $(img).width(), $(img).height() );
            t.hold['sizer'] = max1 > max2 ? max2 / max1 : 1;

            t.initCrop(postid, img, parent);
            t.setCropSelection(postid, 0);

            if ( (typeof callback != "unknown") && callback != null )
                callback();

            if ( $('#imgedit-history-' + postid).val() && $('#imgedit-undone-' + postid).val() == 0 )
                $('input.imgedit-submit-btn', '#imgedit-panel-' + postid).removeAttr('disabled');
            else
                $('input.imgedit-submit-btn', '#imgedit-panel-' + postid).attr('disabled', 'disabled');

            t.toggleEditor(postid, 0);
        }).attr('src', ajaxurl + '?' + $.param(data));
    },

    action : function(postid, nonce, action) {
        var t = this, data, w, h, fw, fh;

        if ( t.notsaved(postid) )
            return false;

        data = {
            'action': 'image-editor',
            '_ajax_nonce': nonce,
            'postid': postid
        };

        if ( 'scale' == action ) {
            w = $('#imgedit-scale-width-' + postid),
            h = $('#imgedit-scale-height-' + postid),
            fw = t.intval(w.val()),
            fh = t.intval(h.val());

            if ( fw < 1 ) {
                w.focus();
                return false;;
            } else if ( fh < 1 ) {
                h.focus();
                return false;;
            }

            if ( fw == t.hold.ow || fh == t.hold.oh )
                return false;

            data['do'] = 'scale';
            data['fwidth'] = fw;
            data['fheight'] = fh;
        } else if ( 'restore' == action ) {
            data['do'] = 'restore';
        } else {
            return false;
        }

        t.toggleEditor(postid, 1);
        $.post(ajaxurl, data, function(r) {
            $('#image-editor-' + postid).empty().append(r);
            t.toggleEditor(postid, 0);
        });
    },

    save : function(postid, nonce) {
        var data, target = this.getTarget(postid), history = this.filterHistory(postid, 0);

        if ( '' == history )
            return false;

        this.toggleEditor(postid, 1);
        data = {
            'action': 'image-editor',
            '_ajax_nonce': nonce,
            'postid': postid,
            'history': history,
            'target': target,
            'do': 'save'
        };

        $.post(ajaxurl, data, function(r) {
            var ret = JSON.parse(r);

            if ( ret.error ) {
                $('#imgedit-response-' + postid).html('<div class="error"><p>' + ret.error + '</p><div>');
                imageEdit.close(postid);
                return;
            }

            if ( ret.fw && ret.fh )
                $('#media-dims-' + postid).html( ret.fw + ' &times; ' + ret.fh );

            if ( ret.thumbnail )
                $('.thumbnail', '#thumbnail-head-' + postid).attr('src', ''+ret.thumbnail);

            if ( ret.msg )
                $('#imgedit-response-' + postid).html('<div class="updated"><p>' + ret.msg + '</p></div>');

            imageEdit.close(postid);
        });
    },

    open : function(postid, nonce) {
        var data, elem = $('#image-editor-' + postid), head = $('#media-head-' + postid),
            btn = $('#imgedit-open-btn-' + postid), spin = btn.siblings('img');

        btn.attr('disabled', 'disabled');
        spin.css('visibility', 'visible');

        data = {
            'action': 'image-editor',
            '_ajax_nonce': nonce,
            'postid': postid,
            'do': 'open'
        };

        elem.load(ajaxurl, data, function() {
            elem.fadeIn('fast');
            head.fadeOut('fast', function(){
                btn.removeAttr('disabled');
                spin.css('visibility', 'hidden');
            });
        });
    },

    imgLoaded : function(postid) {
        var img = $('#image-preview-' + postid), parent = $('#imgedit-crop-' + postid);

        this.initCrop(postid, img, parent);
        this.setCropSelection(postid, 0);
        this.toggleEditor(postid, 0);
    },

    initCrop : function(postid, image, parent) {
        var t = this, selW = $('#imgedit-sel-width-' + postid),
            selH = $('#imgedit-sel-height-' + postid);

        t.iasapi = $(image).imgAreaSelect({
            parent: parent,
            instance: true,
            handles: true,
            keys: true,
            minWidth: 3,
            minHeight: 3,

            onInit: function(img, c) {
                parent.children().mousedown(function(e){
                    var ratio = false, sel, defRatio;

                    if ( e.shiftKey ) {
                        sel = t.iasapi.getSelection();
                        defRatio = t.getSelRatio(postid);
                        ratio = ( sel && sel.width && sel.height ) ? sel.width + ':' + sel.height : defRatio;
                    }

                    t.iasapi.setOptions({
                        aspectRatio: ratio
                    });
                });
            },

            onSelectStart: function(img, c) {
                imageEdit.setDisabled($('#imgedit-crop-sel-' + postid), 1);
            },

            onSelectEnd: function(img, c) {
                imageEdit.setCropSelection(postid, c);
            },

            onSelectChange: function(img, c) {
                var sizer = imageEdit.hold.sizer;
                selW.val( imageEdit.round(c.width / sizer) );
                selH.val( imageEdit.round(c.height / sizer) );
            }
        });
    },

    setCropSelection : function(postid, c) {
        var sel, min = $('#imgedit-minthumb-' + postid).val() || '128:128',
            sizer = this.hold['sizer'];
            min = min.split(':');
            c = c || 0;

        if ( !c || ( c.width < 3 && c.height < 3 ) ) {
            this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 0);
            this.setDisabled($('#imgedit-crop-sel-' + postid), 0);
            $('#imgedit-sel-width-' + postid).val('');
            $('#imgedit-sel-height-' + postid).val('');
            $('#imgedit-selection-' + postid).val('');
            return false;
        }

        if ( c.width < (min[0] * sizer) && c.height < (min[1] * sizer) ) {
            this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 0);
            $('#imgedit-selection-' + postid).val('');
            return false;
        }

        sel = { 'x': c.x1, 'y': c.y1, 'w': c.width, 'h': c.height };
        this.setDisabled($('.imgedit-crop', '#imgedit-panel-' + postid), 1);
        $('#imgedit-selection-' + postid).val( JSON.stringify(sel) );
    },

    close : function(postid, warn) {
        warn = warn || false;

        if ( warn && this.notsaved(postid) )
            return false;

        this.iasapi = {};
        this.hold = {};
        $('#image-editor-' + postid).fadeOut('fast', function() {
            $('#media-head-' + postid).fadeIn('fast');
            $(this).empty();
        });
    },

    notsaved : function(postid) {
        var h = $('#imgedit-history-' + postid).val(),
            history = (h != '') ? JSON.parse(h) : new Array(),
            pop = this.intval( $('#imgedit-undone-' + postid).val() );

        if ( pop < history.length ) {
            if ( confirm( $('#imgedit-leaving-' + postid).html() ) )
                return false;
            return true;
        }
        return false;
    },

    addStep : function(op, postid, nonce) {
        var t = this, elem = $('#imgedit-history-' + postid),
        history = (elem.val() != '') ? JSON.parse(elem.val()) : new Array(),
        undone = $('#imgedit-undone-' + postid),
        pop = t.intval(undone.val());

        while ( pop > 0 ) {
            history.pop();
            pop--;
        }
        undone.val(0); // reset

        history.push(op);
        elem.val( JSON.stringify(history) );

        t.refreshEditor(postid, nonce, function() {
            t.setDisabled($('#image-undo-' + postid), true);
            t.setDisabled($('#image-redo-' + postid), false);
        });
    },

    rotate : function(angle, postid, nonce, t) {
        if ( $(t).hasClass('disabled') )
            return false;

        this.addStep({ 'r': { 'r': angle, 'fw': this.hold['h'], 'fh': this.hold['w'] }}, postid, nonce);
    },

    flip : function (axis, postid, nonce, t) {
        if ( $(t).hasClass('disabled') )
            return false;

        this.addStep({ 'f': { 'f': axis, 'fw': this.hold['w'], 'fh': this.hold['h'] }}, postid, nonce);
    },

    crop : function (postid, nonce, t) {
        var sel = $('#imgedit-selection-' + postid).val(),
            w = this.intval( $('#imgedit-sel-width-' + postid).val() ),
            h = this.intval( $('#imgedit-sel-height-' + postid).val() );

        if ( $(t).hasClass('disabled') || sel == '' )
            return false;

        sel = JSON.parse(sel);
        if ( sel.w > 0 && sel.h > 0 && w > 0 && h > 0 ) {
            sel['fw'] = w;
            sel['fh'] = h;
            this.addStep({ 'c': sel }, postid, nonce);
        }
    },

    undo : function (postid, nonce) {
        var t = this, button = $('#image-undo-' + postid), elem = $('#imgedit-undone-' + postid),
            pop = t.intval( elem.val() ) + 1;

        if ( button.hasClass('disabled') )
            return;

        elem.val(pop);
        t.refreshEditor(postid, nonce, function() {
            var elem = $('#imgedit-history-' + postid),
            history = (elem.val() != '') ? JSON.parse(elem.val()) : new Array();

            t.setDisabled($('#image-redo-' + postid), true);
            t.setDisabled(button, pop < history.length);
        });
    },

    redo : function(postid, nonce) {
        var t = this, button = $('#image-redo-' + postid), elem = $('#imgedit-undone-' + postid),
            pop = t.intval( elem.val() ) - 1;

        if ( button.hasClass('disabled') )
            return;

        elem.val(pop);
        t.refreshEditor(postid, nonce, function() {
            t.setDisabled($('#image-undo-' + postid), true);
            t.setDisabled(button, pop > 0);
        });
    },

    setNumSelection : function(postid) {
        var sel, elX = $('#imgedit-sel-width-' + postid), elY = $('#imgedit-sel-height-' + postid),
            x = this.intval( elX.val() ), y = this.intval( elY.val() ),
            img = $('#image-preview-' + postid), imgh = img.height(), imgw = img.width(),
            sizer = this.hold['sizer'], x1, y1, x2, y2, ias = this.iasapi;

        if ( x < 1 ) {
            elX.val('');
            return false;
        }

        if ( y < 1 ) {
            elY.val('');
            return false;
        }

        if ( x && y && ( sel = ias.getSelection() ) ) {
            x2 = sel.x1 + Math.round( x * sizer );
            y2 = sel.y1 + Math.round( y * sizer );
            x1 = sel.x1;
            y1 = sel.y1;

            if ( x2 > imgw ) {
                x1 = 0;
                x2 = imgw;
                elX.val( Math.round( x2 / sizer ) );
            }

            if ( y2 > imgh ) {
                y1 = 0;
                y2 = imgh;
                elY.val( Math.round( y2 / sizer ) );
            }

            ias.setSelection( x1, y1, x2, y2 );
            ias.update();
            this.setCropSelection(postid, ias.getSelection());
        }
    },

    round : function(num) {
        var s;
        num = Math.round(num);

        if ( this.hold.sizer > 0.6 )
            return num;

        s = num.toString().slice(-1);

        if ( '1' == s )
            return num - 1;
        else if ( '9' == s )
            return num + 1;

        return num;
    },

    setRatioSelection : function(postid, n, el) {
        var sel, r, x = this.intval( $('#imgedit-crop-width-' + postid).val() ),
            y = this.intval( $('#imgedit-crop-height-' + postid).val() ),
            h = $('#image-preview-' + postid).height();

        if ( !this.intval( $(el).val() ) ) {
            $(el).val('');
            return;
        }

        if ( x && y ) {
            this.iasapi.setOptions({
                aspectRatio: x + ':' + y
            });

            if ( sel = this.iasapi.getSelection(true) ) {
                r = Math.ceil( sel.y1 + ((sel.x2 - sel.x1) / (x / y)) );

                if ( r > h ) {
                    r = h;
                    if ( n )
                        $('#imgedit-crop-height-' + postid).val('');
                    else
                        $('#imgedit-crop-width-' + postid).val('');
                }

                this.iasapi.setSelection( sel.x1, sel.y1, sel.x2, r );
                this.iasapi.update();
            }
        }
    }
}
})(jQuery);