modal.js

angular.module('ui.bootstrap.modal', ['ui.bootstrap.stackedMap'])
  /**
   * A helper, internal data structure that stores all references attached to key
   */
  .factory('$$multiMap', function () {
    return {
      createNew: function () {
        var map = {};

        return {
          entries: function () {
            return Object.keys(map).map(function (key) {
              return {
                key: key,
                value: map[key]
              };
            });
          },
          get: function (key) {
            return map[key];
          },
          hasKey: function (key) {
            return !!map[key];
          },
          keys: function () {
            return Object.keys(map);
          },
          put: function (key, value) {
            if (!map[key]) {
              map[key] = [];
            }

            map[key].push(value);
          },
          remove: function (key, value) {
            var values = map[key];

            if (!values) {
              return;
            }

            var idx = values.indexOf(value);

            if (idx !== -1) {
              values.splice(idx, 1);
            }

            if (!values.length) {
              delete map[key];
            }
          }
        };
      }
    };
  })

  /**
   * Pluggable resolve mechanism for the modal resolve resolution
   * Supports UI Router's $resolve service
   */
  .provider('$uibResolve', function () {
    var resolve = this;
    this.resolver = null;

    this.setResolver = function (resolver) {
      this.resolver = resolver;
    };

    this.$get = ['$injector', '$q', function ($injector, $q) {
      var resolver = resolve.resolver ? $injector.get(resolve.resolver) : null;
      return {
        resolve: function (invocables, locals, parent, self) {
          if (resolver) {
            return resolver.resolve(invocables, locals, parent, self);
          }

          var promises = [];

          angular.forEach(invocables, function (value) {
            if (angular.isFunction(value) || angular.isArray(value)) {
              promises.push($q.resolve($injector.invoke(value)));
            } else if (angular.isString(value)) {
              promises.push($q.resolve($injector.get(value)));
            } else {
              promises.push($q.resolve(value));
            }
          });

          return $q.all(promises).then(function (resolves) {
            var resolveObj = {};
            var resolveIter = 0;
            angular.forEach(invocables, function (value, key) {
              resolveObj[key] = resolves[resolveIter++];
            });

            return resolveObj;
          });
        }
      };
    }];
  })

  /**
   * A helper directive for the $modal service. It creates a backdrop element.
   */
  .directive('uibModalBackdrop', ['$animateCss', '$injector', '$uibModalStack',
    function ($animateCss, $injector, $modalStack) {
      return {
        replace: true,
        templateUrl: 'app/modal/lib/template/modal/backdrop.html',
        compile: function (tElement, tAttrs) {
          tElement.addClass(tAttrs.backdropClass);
          return linkFn;
        }
      };

      function linkFn(scope, element, attrs) {
        if (attrs.modalInClass) {
          $animateCss(element, {
            addClass: attrs.modalInClass
          }).start();

          scope.$on($modalStack.NOW_CLOSING_EVENT, function (e, setIsAsync) {
            var done = setIsAsync();
            if (scope.modalOptions.animation) {
              $animateCss(element, {
                removeClass: attrs.modalInClass
              }).start().then(done);
            } else {
              done();
            }
          });
        }
      }
    }
  ])

  .directive('uibModalWindow', ['$uibModalStack', '$q', '$animate', '$animateCss', '$document',
    function ($modalStack, $q, $animate, $animateCss, $document) {
      return {
        scope: {
          index: '@'
        },
        replace: true,
        transclude: true,
        templateUrl: function (tElement, tAttrs) {
          return tAttrs.templateUrl || 'app/modal/lib/template/modal/window.html';
        },
        link: function (scope, element, attrs) {
          element.addClass(attrs.windowClass || '');
          element.addClass(attrs.windowTopClass || '');
          scope.size = attrs.size;

          scope.close = function (evt) {
            var modal = $modalStack.getTop();
            if (modal && modal.value.backdrop &&
              modal.value.backdrop !== 'static' &&
              evt.target === evt.currentTarget) {
              evt.preventDefault();
              evt.stopPropagation();
              $modalStack.dismiss(modal.key, 'backdrop click');
            }
          };

          // moved from template to fix issue #2280
          element.on('click', scope.close);

          // This property is only added to the scope for the purpose of detecting when this directive is rendered.
          // We can detect that by using this property in the template associated with this directive and then use
          // {@link Attribute#$observe} on it. For more details please see {@link TableColumnResize}.
          scope.$isRendered = true;

          // Deferred object that will be resolved when this modal is render.
          var modalRenderDeferObj = $q.defer();
          // Observe function will be called on next digest cycle after compilation, ensuring that the DOM is ready.
          // In order to use this way of finding whether DOM is ready, we need to observe a scope property used in modal's template.
          attrs.$observe('modalRender', function (value) {
            if (value === 'true') {
              modalRenderDeferObj.resolve();
            }
          });

          modalRenderDeferObj.promise.then(function () {
            var animationPromise = null;

            if (attrs.modalInClass) {
              animationPromise = $animateCss(element, {
                addClass: attrs.modalInClass
              }).start();

              scope.$on($modalStack.NOW_CLOSING_EVENT, function (e, setIsAsync) {
                var done = setIsAsync();
                if ($animateCss) {
                  $animateCss(element, {
                    removeClass: attrs.modalInClass
                  }).start().then(done);
                } else {
                  $animate.removeClass(element, attrs.modalInClass).then(done);
                }
              });
            }


            $q.when(animationPromise).then(function () {
              // Notify {@link $modalStack} that modal is rendered.
              var modal = $modalStack.getTop();
              if (modal) {
                $modalStack.modalRendered(modal.key);
              }

              /**
               * If something within the freshly-opened modal already has focus (perhaps via a
               * directive that causes focus). then no need to try and focus anything.
               */
              if (!($document[0].activeElement && element[0].contains($document[0].activeElement))) {
                /**
                 * @description 自动聚焦取消判断条件，自动对第一个元素聚焦
                 * @author 广州银云信息科技有限公司
                 * @version 5.0
                 */
                // var inputWithAutofocus = element[0].querySelector('[autofocus]');
                var inputWithAutofocus = element[0].querySelector('input[type=text]');
                /**
                 * Auto-focusing of a freshly-opened modal element causes any child elements
                 * with the autofocus attribute to lose focus. This is an issue on touch
                 * based devices which will show and then hide the onscreen keyboard.
                 * Attempts to refocus the autofocus element via JavaScript will not reopen
                 * the onscreen keyboard. Fixed by updated the focusing logic to only autofocus
                 * the modal element if the modal does not contain an autofocus element.
                 */
                if (inputWithAutofocus&&inputWithAutofocus.classList.value.indexOf('input-select')==-1) {
                  let tmpScrollY=window.scrollY;
                  inputWithAutofocus.focus();
                  /**
                   * @description 修改默认scrollTop，防止聚焦之后scroll到顶部
                   */
                  window.scrollTo(window.scrollX,tmpScrollY)
                } else {
                  element[0].focus();
                }
              }
            });
          });
        }
      };
    }
  ])

  .directive('uibModalAnimationClass', function () {
    return {
      compile: function (tElement, tAttrs) {
        if (tAttrs.modalAnimation) {
          tElement.addClass(tAttrs.uibModalAnimationClass);
        }
      }
    };
  })

  .directive('uibModalTransclude', function () {
    return {
      link: function (scope, element, attrs, controller, transclude) {
        transclude(scope.$parent, function (clone) {
          element.empty();
          element.append(clone);
        });
      }
    };
  })

  .factory('$uibModalStack', ['$animate', '$animateCss', '$document',
    '$compile', '$rootScope', '$q', '$$multiMap', '$$stackedMap',
    function ($animate, $animateCss, $document, $compile, $rootScope, $q, $$multiMap, $$stackedMap) {
      var OPENED_MODAL_CLASS = 'modal-open';

      var backdropDomEl, backdropScope;
      var openedWindows = $$stackedMap.createNew();
      var openedClasses = $$multiMap.createNew();
      var $modalStack = {
        NOW_CLOSING_EVENT: 'modal.stack.now-closing'
      };

      //Modal focus behavior
      var focusableElementList;
      var focusIndex = 0;
      var tababbleSelector = 'a[href], area[href], input:not([disabled]), ' +
        'button:not([disabled]),select:not([disabled]), textarea:not([disabled]), ' +
        'iframe, object, embed, *[tabindex], *[contenteditable=true]';

      function backdropIndex() {
        var topBackdropIndex = -1;
        var opened = openedWindows.keys();
        for (var i = 0; i < opened.length; i++) {
          if (openedWindows.get(opened[i]).value.backdrop) {
            topBackdropIndex = i;
          }
        }
        return topBackdropIndex;
      }

      $rootScope.$watch(backdropIndex, function (newBackdropIndex) {
        if (backdropScope) {
          backdropScope.index = newBackdropIndex;
        }
      });

      function removeModalWindow(modalInstance, elementToReceiveFocus) {
        var modalWindow = openedWindows.get(modalInstance).value;
        var appendToElement = modalWindow.appendTo;

        //clean up the stack
        openedWindows.remove(modalInstance);

        removeAfterAnimate(modalWindow.modalDomEl, modalWindow.modalScope, function () {
          var modalBodyClass = modalWindow.openedClass || OPENED_MODAL_CLASS;
          openedClasses.remove(modalBodyClass, modalInstance);
          appendToElement.toggleClass(modalBodyClass, openedClasses.hasKey(modalBodyClass));
          toggleTopWindowClass(true);
        }, modalWindow.closedDeferred);
        checkRemoveBackdrop();

        //move focus to specified element if available, or else to body
        if (elementToReceiveFocus && elementToReceiveFocus.focus) {
          elementToReceiveFocus.focus();
        } else if (appendToElement.focus) {
          appendToElement.focus();
        }
      }

      // Add or remove "windowTopClass" from the top window in the stack
      function toggleTopWindowClass(toggleSwitch) {
        var modalWindow;

        if (openedWindows.length() > 0) {
          modalWindow = openedWindows.top().value;
          modalWindow.modalDomEl.toggleClass(modalWindow.windowTopClass || '', toggleSwitch);
        }
      }

      function checkRemoveBackdrop() {
        //remove backdrop if no longer needed
        if (backdropDomEl && backdropIndex() === -1) {
          var backdropScopeRef = backdropScope;
          removeAfterAnimate(backdropDomEl, backdropScope, function () {
            backdropScopeRef = null;
          });
          backdropDomEl = undefined;
          backdropScope = undefined;
        }
      }

      function removeAfterAnimate(domEl, scope, done, closedDeferred) {
        var asyncDeferred;
        var asyncPromise = null;
        var setIsAsync = function () {
          if (!asyncDeferred) {
            asyncDeferred = $q.defer();
            asyncPromise = asyncDeferred.promise;
          }

          return function asyncDone() {
            asyncDeferred.resolve();
          };
        };
        scope.$broadcast($modalStack.NOW_CLOSING_EVENT, setIsAsync);

        // Note that it's intentional that asyncPromise might be null.
        // That's when setIsAsync has not been called during the
        // NOW_CLOSING_EVENT broadcast.
        return $q.when(asyncPromise).then(afterAnimating);

        function afterAnimating() {
          if (afterAnimating.done) {
            return;
          }
          afterAnimating.done = true;

          $animateCss(domEl, {
            event: 'leave'
          }).start().then(function () {
            domEl.remove();
            if (closedDeferred) {
              closedDeferred.resolve();
            }
          });

          scope.$destroy();
          if (done) {
            done();
          }
        }
      }

      $document.on('keydown', keydownListener);

      $rootScope.$on('$destroy', function () {
        $document.off('keydown', keydownListener);
      });

      function keydownListener(evt) {
        if (evt.isDefaultPrevented()) {
          return evt;
        }

        var modal = openedWindows.top();
        if (modal) {
          switch (evt.which) {
            case 27:
              {
                if (modal.value.keyboard) {
                  evt.preventDefault();
                  $rootScope.$apply(function () {
                    $modalStack.dismiss(modal.key, 'escape key press');
                  });
                }
                break;
              }
            case 9:
              {
                $modalStack.loadFocusElementList(modal);
                var focusChanged = false;
                if (evt.shiftKey) {
                  if ($modalStack.isFocusInFirstItem(evt) || $modalStack.isModalFocused(evt, modal)) {
                    focusChanged = $modalStack.focusLastFocusableElement();
                  }
                } else {
                  if ($modalStack.isFocusInLastItem(evt)) {
                    focusChanged = $modalStack.focusFirstFocusableElement();
                  }
                }

                if (focusChanged) {
                  evt.preventDefault();
                  evt.stopPropagation();
                }
                break;
              }
          }
        }
      }

      $modalStack.open = function (modalInstance, modal) {
        var modalOpener = $document[0].activeElement,
          modalBodyClass = modal.openedClass || OPENED_MODAL_CLASS;

        toggleTopWindowClass(false);

        openedWindows.add(modalInstance, {
          deferred: modal.deferred,
          renderDeferred: modal.renderDeferred,
          closedDeferred: modal.closedDeferred,
          modalScope: modal.scope,
          backdrop: modal.backdrop,
          keyboard: modal.keyboard,
          openedClass: modal.openedClass,
          windowTopClass: modal.windowTopClass,
          animation: modal.animation,
          appendTo: modal.appendTo
        });

        openedClasses.put(modalBodyClass, modalInstance);

        var appendToElement = modal.appendTo,
          currBackdropIndex = backdropIndex();

        if (!appendToElement.length) {
          throw new Error('appendTo element not found. Make sure that the element passed is in DOM.');
        }

        if (currBackdropIndex >= 0 && !backdropDomEl) {
          backdropScope = $rootScope.$new(true);
          backdropScope.modalOptions = modal;
          backdropScope.index = currBackdropIndex;
          backdropDomEl = angular.element('<div uib-modal-backdrop="modal-backdrop"></div>');
          backdropDomEl.attr('backdrop-class', modal.backdropClass);
          if (modal.animation) {
            backdropDomEl.attr('modal-animation', 'true');
          }
          $compile(backdropDomEl)(backdropScope);
          $animate.enter(backdropDomEl, appendToElement);
        }
        var angularDomEl = angular.element('<div '+(modal.displayClass?('class="'+modal.displayClass+'"'):'')+' uib-modal-window="modal-window"></div>');
        angularDomEl.attr({
          'template-url': modal.windowTemplateUrl,
          'window-class': modal.windowClass,
          'window-top-class': modal.windowTopClass,
          'size': modal.size,
          //'index': openedWindows.length() - 1,
          'animate': 'animate'
        }).html(modal.content);
        if (modal.animation) {
          angularDomEl.attr('modal-animation', 'true');
        }

        $animate.enter($compile(angularDomEl)(modal.scope), appendToElement)
          .then(function () {
            if (!modal.scope.$$uibDestructionScheduled) {
              $animate.addClass(appendToElement, modalBodyClass);
            }
          });

        openedWindows.top().value.modalDomEl = angularDomEl;
        openedWindows.top().value.modalOpener = modalOpener;

        $modalStack.clearFocusListCache();
      };

      function broadcastClosing(modalWindow, resultOrReason, closing) {
        return !modalWindow.value.modalScope.$broadcast('modal.closing', resultOrReason, closing).defaultPrevented;
      }

      $modalStack.close = function (modalInstance, result) {
        var modalWindow = openedWindows.get(modalInstance);
        if (modalWindow && broadcastClosing(modalWindow, result, true)) {
          modalWindow.value.modalScope.$$uibDestructionScheduled = true;
          modalWindow.value.deferred.resolve(result);
          removeModalWindow(modalInstance, modalWindow.value.modalOpener);
          return true;
        }
        return !modalWindow;
      };

      $modalStack.dismiss = function (modalInstance, reason) {
        var modalWindow = openedWindows.get(modalInstance);
        if (modalWindow && broadcastClosing(modalWindow, reason, false)) {
          modalWindow.value.modalScope.$$uibDestructionScheduled = true;
          modalWindow.value.deferred.reject(reason);
          removeModalWindow(modalInstance, modalWindow.value.modalOpener);
          return true;
        }
        return !modalWindow;
      };

      $modalStack.dismissAll = function (reason) {
        var topModal = this.getTop();
        while (topModal && this.dismiss(topModal.key, reason)) {
          topModal = this.getTop();
        }
      };

      $modalStack.getTop = function () {
        return openedWindows.top();
      };

      $modalStack.modalRendered = function (modalInstance) {
        var modalWindow = openedWindows.get(modalInstance);
        if (modalWindow) {
          modalWindow.value.renderDeferred.resolve();
        }
      };

      $modalStack.focusFirstFocusableElement = function () {
        if (focusableElementList.length > 0) {
          focusableElementList[0].focus();
          return true;
        }
        return false;
      };
      $modalStack.focusLastFocusableElement = function () {
        if (focusableElementList.length > 0) {
          focusableElementList[focusableElementList.length - 1].focus();
          return true;
        }
        return false;
      };

      $modalStack.isModalFocused = function (evt, modalWindow) {
        if (evt && modalWindow) {
          var modalDomEl = modalWindow.value.modalDomEl;
          if (modalDomEl && modalDomEl.length) {
            return (evt.target || evt.srcElement) === modalDomEl[0];
          }
        }
        return false;
      };

      $modalStack.isFocusInFirstItem = function (evt) {
        if (focusableElementList.length > 0) {
          return (evt.target || evt.srcElement) === focusableElementList[0];
        }
        return false;
      };

      $modalStack.isFocusInLastItem = function (evt) {
        if (focusableElementList.length > 0) {
          return (evt.target || evt.srcElement) === focusableElementList[focusableElementList.length - 1];
        }
        return false;
      };

      $modalStack.clearFocusListCache = function () {
        focusableElementList = [];
        focusIndex = 0;
      };

      $modalStack.loadFocusElementList = function (modalWindow) {
        if (focusableElementList === undefined || !focusableElementList.length) {
          if (modalWindow) {
            var modalDomE1 = modalWindow.value.modalDomEl;
            if (modalDomE1 && modalDomE1.length) {
              focusableElementList = modalDomE1[0].querySelectorAll(tababbleSelector);
            }
          }
        }
      };

      return $modalStack;
    }
  ])

  .provider('$uibModal', function () {
    var $modalProvider = {
      options: {
        animation: true,
        backdrop: true, //can also be false or 'static'
        keyboard: true
      },
      $get: ['$rootScope', '$q', '$document', '$templateRequest', '$controller', '$uibResolve', '$uibModalStack',
        function ($rootScope, $q, $document, $templateRequest, $controller, $uibResolve, $modalStack) {
          var $modal = {};

          function getTemplatePromise(options) {
            return options.template ? $q.when(options.template) :
              $templateRequest(angular.isFunction(options.templateUrl) ?
                options.templateUrl() : options.templateUrl);
          }

          var promiseChain = null;
          $modal.getPromiseChain = function () {
            return promiseChain;
          };

          /**
           * 处理按钮失焦功能函数 author:riverLethe 2018-1-12
           */
          var btnBlur = function () {
            var obj = document.activeElement;
            try {
              obj.blur();
            } catch (e) {}
          }
          $modal.open = function (modalOptions) {
            btnBlur();
            var modalResultDeferred = $q.defer();
            var modalOpenedDeferred = $q.defer();
            var modalClosedDeferred = $q.defer();
            var modalRenderDeferred = $q.defer();

            //prepare an instance of a modal to be injected into controllers and returned to a caller
            var modalInstance = {
              result: modalResultDeferred.promise,
              opened: modalOpenedDeferred.promise,
              closed: modalClosedDeferred.promise,
              rendered: modalRenderDeferred.promise,
              close: function (result) {
                return $modalStack.close(modalInstance, result);
              },
              dismiss: function (reason) {
                return $modalStack.dismiss(modalInstance, reason);
              }
            };

            //merge and clean up options
            modalOptions = angular.extend({}, $modalProvider.options, modalOptions);
            modalOptions.resolve = modalOptions.resolve || {};
            modalOptions.appendTo = modalOptions.appendTo || $document.find('body').eq(0);

            //verify options
            if (!modalOptions.template && !modalOptions.templateUrl) {
              throw new Error('One of template or templateUrl options is required.');
            }

            var templateAndResolvePromise =
              $q.all([getTemplatePromise(modalOptions), $uibResolve.resolve(modalOptions.resolve, {}, null, null)]);

            function resolveWithTemplate() {
              return templateAndResolvePromise;
            }

            // Wait for the resolution of the existing promise chain.
            // Then switch to our own combined promise dependency (regardless of how the previous modal fared).
            // Then add to $modalStack and resolve opened.
            // Finally clean up the chain variable if no subsequent modal has overwritten it.
            var samePromise;
            samePromise = promiseChain = $q.all([promiseChain])
              .then(resolveWithTemplate, resolveWithTemplate)
              .then(function resolveSuccess(tplAndVars) {
                var providedScope = modalOptions.scope || $rootScope;

                var modalScope = providedScope.$new();
                modalScope.$close = modalInstance.close;
                modalScope.$dismiss = modalInstance.dismiss;

                modalScope.$on('$destroy', function () {
                  if (!modalScope.$$uibDestructionScheduled) {
                    modalScope.$dismiss('$uibUnscheduledDestruction');
                  }
                });

                var ctrlInstance, ctrlLocals = {};

                //controllers
                if (modalOptions.controller) {
                  ctrlLocals.$scope = modalScope;
                  ctrlLocals.$uibModalInstance = modalInstance;
                  angular.forEach(tplAndVars[1], function (value, key) {
                    ctrlLocals[key] = value;
                  });

                  ctrlInstance = $controller(modalOptions.controller, ctrlLocals);
                  if (modalOptions.controllerAs) {
                    if (modalOptions.bindToController) {
                      ctrlInstance.$close = modalScope.$close;
                      ctrlInstance.$dismiss = modalScope.$dismiss;
                      angular.extend(ctrlInstance, providedScope);
                      if (angular.isFunction(ctrlInstance.$onInit)) {
                        ctrlInstance.$onInit();
                      }
                    }

                    modalScope[modalOptions.controllerAs] = ctrlInstance;
                  }
                }

                $modalStack.open(modalInstance, {
                  scope: modalScope,
                  deferred: modalResultDeferred,
                  renderDeferred: modalRenderDeferred,
                  closedDeferred: modalClosedDeferred,
                  content: tplAndVars[0],
                  animation: modalOptions.animation,
                  backdrop: modalOptions.backdrop,
                  keyboard: modalOptions.keyboard,
                  backdropClass: modalOptions.backdropClass,
                  windowTopClass: modalOptions.windowTopClass,
                  windowClass: modalOptions.windowClass,
                  windowTemplateUrl: modalOptions.windowTemplateUrl,
                  size: modalOptions.size,
                  openedClass: modalOptions.openedClass,
                  appendTo: modalOptions.appendTo,
                  displayClass:modalOptions.displayClass
                });
                modalOpenedDeferred.resolve(true);

              }, function resolveError(reason) {
                modalOpenedDeferred.reject(reason);
                modalResultDeferred.reject(reason);
              })['finally'](function () {
                if (promiseChain === samePromise) {
                  promiseChain = null;
                }
              });

            return modalInstance;
          };

          return $modal;
        }
      ]
    };

    return $modalProvider;
  });