Angular 常用指令
已經用了angular很久積累了一些很實用的指令，需要的話直接拿走用，有問題大家一起交流
1.focus時，input:text內容全選
angular.module('my.directives').directive('autoselect', [function () { return { restrict: 'A', link: function (scope, element, attr) { if (element.is("input") && attr.type === "text") { var selected = false; var time = parseInt(attr["autoselect"]); element.bind("mouseup", function (e) { if (selected) { e.preventDefault(); e.stopPropagation(); } selected = false; }); if (time > 0) { element.bind("focus", function (event) { setTimeout(function () { selected = true; event.target.select(); }, time); }); } else { element.bind("focus", function (event) { selected = true; event.target.select(); }); } } } };}]);2.clickOutside指令，外部點擊時觸發,click-outside="func()" func為自己指定的方法，一般為關閉當前層的方法，inside-id="" 點擊指定id的輸入框時，當前層不關閉
angular.module('my.directives').directive('clickOutside', ['$document', function ($document) { return { restrict: 'A', link: function (scope, element, attrs) { $(element).bind('mousedown', function (e) { e.preventDefault(); e.stopPropagation(); }); $("#" + attrs["insideId"]).bind('mousedown', function (e) { e.stopPropagation(); }); $("#" + attrs["insideId"]).bind('blur', function (e) { setTimeout(function () { scope.$apply(attrs.clickOutside); }); }); $document.bind('mousedown', function () { scope.$apply(attrs.clickOutside); }); } };}]);3.clickInside指令，內部點擊時觸發
angular.module('my.directives').directive('clickInside', ['$document', function ($document) { return { restrict: 'A', link: function (scope, element, attrs, ctrl) { $(element).bind('focus click', function (e) { scope.$apply(attrs.clickInside); e.stopPropagation(); }); } };}]);4.scrollInside 指令 ，內部滾動時觸發
angular.module('my.directives').directive('scrollInside', function () { return { restrict: 'A', link: function (scope, element, attrs, ctrl) { $(element).bind('scroll', function (e) { scope.$apply(attrs.scrollInside); e.stopPropagation(); }); } };});5. bindKeyBoardEvent指令，內部獲得焦點或者點擊時觸發
angular.module('my.directives').directive('bindKeyBoardEvent', function () { return { restrict: 'A', link: function (scope, element, attrs, ctrl) { $(element).bind('focus click', function (e) { scope.$apply(attrs.bindKeyBoardEvent); e.stopPropagation(); }); } };});6. myDraggable 使元素可拖動
angular.module('my.directives').directive('myDraggable', ['$parse', function ($parse) { return { restrict: 'A', link: function (scope, element, attr) { if (attr["modal"] !== undefined) { scope.$watch(attr["modal"], function (newValue) { if (newValue) { setTimeout(function () { $(".modal").draggable({handle: ".modal-header"}); }, 100); } else { $(".modal").attr("style", ""); } }, true); $(window).resize(function () { $(".modal").attr("style", ""); }); } else { element.draggable($parse(attr["hrDraggable"])(scope)); } } };}]);6.myResizable 使元素可拖拽改變尺寸大小
angular.module('my.directives').directive('myResizable', ['$parse', function ($parse) { return { restrict: 'A', link: function (scope, element, attr) { if (attr["modal"] !== undefined) { scope.$watch(attr["modal"], function (newValue) { if (newValue) { setTimeout(function () { $(".modal").resizable({handles: "e, w"}); }, 100); } }, true); } else { element.resizable($parse(attr["hrResizable"])(scope)); } } };}]);6. conditionFocus 作為一個元素的屬性存在：如果監聽的表達式值為true，則將焦點放到本元素上。
angular.module('my.directives').directive("conditionFocus", [function () { return function (scope, element, attrs) { var dereg = scope.$watch(attrs.conditionFocus, function (newValue) { if (newValue) { element.focus(); } }); element.bind("$destroy", function () { if (dereg) { dereg(); } }); };}]);7.scrollToHide 滾動到頂部的時候觸發
angular.module('my.directives').directive("scrollToHide", [function () { return function (scope, element, attrs) { var height= parseFloat(attrs.maxHeight) $(window).scroll(function(){ var scrollTop= document.body.scrollTop||document.documentElement.scrollTop; if(scrollTop>height){ $parse(attrs.ngShow).assign(scope, false); }else{ $parse(attrs.ngShow).assign(scope, true); } }) };}]);8.resetToZero 作為一個元素的屬性存在：如果監聽的表達式值為true，則將本元素中所綁定的ngModel值設為0
angular.module('my.directives').directive("resetToZero", ["$parse", function ($parse) { return function (scope, element, attrs) { var dereg = scope.$watch(attrs.resetToZero, function (newValue) { if (newValue) { if (attrs.ngModel) { $parse(attrs.ngModel).assign(scope, 0); } } }); element.bind("$destroy", function () { if (dereg) { dereg(); } }); };}]);9.resetToEmptyString 作為一個元素的屬性存在：如果監聽的表達式值為true，則將本元素中所綁定的ngModel值設為空字符串。
angular.module('my.directives').directive("resetToEmptyString", ["$parse", function ($parse) { return function (scope, element, attrs) { var dereg = scope.$watch(attrs.resetToEmptyString, function (newValue) { if (newValue) { if (attrs.ngModel) { var _getter = $parse(attrs.ngModel); if (_getter(scope)) { _getter.assign(scope, ""); } else { _getter.assign(scope.$parent, ""); } } } }); element.bind("$destroy", function () { if (dereg) { dereg(); } }); };}]);10. numberOnly 輸入框內容僅限數值的指令(輸入內容不允許為 負值),可以設定最大值（max屬性）
angular.module('my.directives').directive("numberOnly", ["$parse", function ($parse) { return function (scope, element, attrs) { element.bind("keyup", function () { if(event.keyCode==37||event.keyCode== 39){ return false; } var val = element.val().replace(/[^/d.]/g, ''); if(attrs.max){ if(val>parseInt(attrs.max)){ val=attrs.max; } } element.val(val); if (attrs.ngModel) { $parse(attrs.ngModel).assign(scope, val); } return false; }); element.bind("afterpaste", function () { var val = element.val().replace(/[^/d.]/g, ''); if(attrs.max){ if(val>parseInt(attrs.max)){ val=attrs.max; } } element.val(val); if (attrs.ngModel) { $parse(attrs.ngModel).assign(scope, val); } return false; }); };}]);11. upperCaseOnly 輸入框自動轉換成大寫
angular.module('my.directives').directive("upperCaseOnly", ["$parse", function ($parse) { return function (scope, element, attrs) { element.bind("keyup", function () { var val = element.val().toUpperCase(); element.val(val); if (attrs.ngModel) { $parse(attrs.ngModel).assign(scope, val); } return false; }); element.bind("afterpaste", function () { var val =element.val().toUpperCase(); element.val(val); if (attrs.ngModel) { $parse(attrs.ngModel).assign(scope, val); } return false; }); };}]);12. noSpecialString 輸入框內容不能為特殊字符
angular.module('my.directives').directive("noSpecialString", ["$parse", function ($parse) { return function (scope, element, attrs) { element.bind("keyup", function () { var val = element.val().replace(/[/W]/g, ''); element.val(val); if (attrs.ngModel) { $parse(attrs.ngModel).assign(scope, val); } return false; }); element.bind("afterpaste", function () { var val = element.val().replace(/[^/d]/g, ''); element.val(val); if (attrs.ngModel) { $parse(attrs.ngModel).assign(scope, val); } return false; }); };}]);13. round2bit 輸入框失去焦點 保留兩位小數
angular.module('my.directives').directive("round2bit", ['$parse', '$filter', function ($parse, $filter) { return function ($scope, element, attrs) { element.blur(function () { if (attrs.ngModel) { var _getter = $parse(attrs.ngModel); var _numberStr2Round = (_getter($scope) || 0); _getter.assign($scope, $filter('number')(_numberStr2Round, 2).split(",").join("")); $scope.$apply(); } }); };}]);14.SelfHeight dom編譯期設置元素高度，可以接受數字或者表達式
angular.module('hr.directives').directive('SelfHeight', ['$timeout', function ($timeout) { function _resizeElement(element, SelfHeight) { element.height((typeof SelfHeight === "number") ? SelfHeight : eval(SelfHeight)); }; return { priority: 1000, link: function (scope, element, attrs) { var hrSelfHeight = attrs["SelfHeight"]; var on = attrs["on"]; if (on) { $(window).resize(function () { _resizeElement(element, scope.$eval(SelfHeight)); }); scope.$watch(on, function () { $timeout(function () { _resizeElement(element, scope.$eval(SelfHeight)); }, 100); }, true); } else { $(window).resize(function () { _resizeElement(element, SelfHeight); }); _resizeElement(element, SelfHeight); } } };}]); 感謝閱讀，希望能幫助到大家，謝謝大家對本站的支持！
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