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Viewing file:     checkboxSet.js (4.96 KB)      -rw-r--r--

/**
 * Copyright JS Foundation and other contributors, http://js.foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 **/
(function($) {
    $.widget( "nodered.checkboxSet", {
        _create: function() {
            var that = this;
            this.uiElement = this.element.wrap( "<span>" ).parent();
            this.uiElement.addClass("red-ui-checkboxSet");
            if (this.options.parent) {
                this.parent = this.options.parent;
                this.parent.checkboxSet('addChild',this.element);
            }
            this.children = [];
            this.partialFlag = false;
            this.stateValue = 0;
            var initialState = this.element.prop('checked');
            this.states = [
                $('<span class="red-ui-checkboxSet-option hide"><i class="fa fa-square-o"></i></span>').appendTo(this.uiElement),
                $('<span class="red-ui-checkboxSet-option hide"><i class="fa fa-check-square-o"></i></span>').appendTo(this.uiElement),
                $('<span class="red-ui-checkboxSet-option hide"><i class="fa fa-minus-square-o"></i></span>').appendTo(this.uiElement)
            ];
            if (initialState) {
                this.states[1].show();
            } else {
                this.states[0].show();
            }

            this.element.on("change", function() {
                if (this.checked) {
                    that.states[0].hide();
                    that.states[1].show();
                    that.states[2].hide();
                } else {
                    that.states[1].hide();
                    that.states[0].show();
                    that.states[2].hide();
                }
                var isChecked = this.checked;
                that.children.forEach(function(child) {
                    child.checkboxSet('state',isChecked,false,true);
                })
            })
            this.uiElement.on("click", function(e) {
                e.stopPropagation();
                // state returns null for a partial state. Clicking on that should
                // result in false.
                that.state((that.state()===false)?true:false);
            })
            if (this.parent) {
                this.parent.checkboxSet('updateChild',this);
            }
        },
        _destroy: function() {
            if (this.parent) {
                this.parent.checkboxSet('removeChild',this.element);
            }
        },
        addChild: function(child) {
            var that = this;
            this.children.push(child);
        },
        removeChild: function(child) {
            var index = this.children.indexOf(child);
            if (index > -1) {
                this.children.splice(index,1);
            }
        },
        updateChild: function(child) {
            var checkedCount = 0;
            this.children.forEach(function(c,i) {
                if (c.checkboxSet('state') === true) {
                    checkedCount++;
                }
            });
            if (checkedCount === 0) {

                this.state(false,true);
            } else if (checkedCount === this.children.length) {
                this.state(true,true);
            } else {
                this.state(null,true);
            }
        },
        disable: function() {
            this.uiElement.addClass('disabled');
        },
        state: function(state,suppressEvent,suppressParentUpdate) {

            if (arguments.length === 0) {
                return this.partialFlag?null:this.element.is(":checked");
            } else {
                this.partialFlag = (state === null);
                var trueState = this.partialFlag||state;
                this.element.prop('checked',trueState);
                if (state === true) {
                    this.states[0].hide();
                    this.states[1].show();
                    this.states[2].hide();
                } else if (state === false) {
                    this.states[2].hide();
                    this.states[1].hide();
                    this.states[0].show();
                } else if (state === null) {
                    this.states[0].hide();
                    this.states[1].hide();
                    this.states[2].show();
                }
                if (!suppressEvent) {
                    this.element.trigger('change',null);
                }
                if (!suppressParentUpdate && this.parent) {
                    this.parent.checkboxSet('updateChild',this);
                }
            }
        }
    })

})(jQuery);