(close for contributing guide): limit integer, decimal input

src/components/input-number/nz-input-number.component.ts

@@ -43,6 +43,7 @@ import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
         [disabled]="nzDisabled"
         [(ngModel)]="nzValue"
         (ngModelChange)="_userInputChange()"
+        (keypress)="_onKeyPress($event)"
         [attr.min]="nzMin"
         [attr.max]="nzMax"
         [attr.step]="_step"
@@ -186,6 +187,24 @@ export class NzInputNumberComponent implements ControlValueAccessor {
     }
   }
 
+  /**
+   * limit integer, decimal input
+   */
+  _onKeyPress($event) {
+    let value = this._inputNumber.nativeElement.value;
+    if ($event.keyCode === 46) {
+      if (value.indexOf('.') !== -1) {
+        $event.returnValue = false;
+      }
+    } else if ($event.keyCode === 45) {
+      if (this.nzMin >= 0 || (value.indexOf('-') !== -1 && value.lastIndexOf('-') >=0)) {
+        $event.returnValue = false;
+      }
+    } else if ($event.keyCode < 48 || $event.keyCode > 57) {
+      $event.returnValue = false;
+    }
+  }
+
   toPrecisionAsStep(num) {
     if (isNaN(num) || num === '') {
       return num;

src/components/input/nz-input.component.ts

@@ -28,6 +28,7 @@ import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
     <ng-template [ngIf]="nzType!='textarea'">
       <input
         (blur)="_emitBlur($event)"
+        (focus)="_emitFocus($event)"
         [attr.id]="nzId"
         [disabled]="nzDisabled"
         [attr.type]="nzType"
@@ -40,6 +41,7 @@ import { ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
     <ng-template [ngIf]="nzType=='textarea'">
       <textarea
         (blur)="_emitBlur($event)"
+        (focus)="_emitFocus($event)"
         [attr.id]="nzId"
         #inputTextarea
         [disabled]="nzDisabled"
@@ -100,6 +102,7 @@ export class NzInputComponent implements AfterContentInit, ControlValueAccessor
   }
 
   @Output() nzBlur: EventEmitter<MouseEvent> = new EventEmitter();
+  @Output() nzFocus: EventEmitter<MouseEvent> = new EventEmitter();
   @ContentChild('addOnBefore') _addOnContentBefore: TemplateRef<any>;
   @ContentChild('addOnAfter') _addOnContentAfter: TemplateRef<any>;
 
@@ -136,6 +139,10 @@ export class NzInputComponent implements AfterContentInit, ControlValueAccessor
     this.nzBlur.emit($event);
   }
 
+  _emitFocus($event) {
+    this.nzFocus.emit($event);
+  }
+
   constructor(private _elementRef: ElementRef, private _renderer: Renderer2) {
     this._el = this._elementRef.nativeElement;
   }

src/showcase/nz-demo-input/nz-demo-input-basic.component.ts

@@ -3,7 +3,7 @@ import { Component, OnInit } from '@angular/core';
 @Component({
   selector: 'nz-demo-input-basic',
   template: `
-    <nz-input [(ngModel)]="inputValue" [nzPlaceHolder]="'Basic usage'" (ngModelChange)="_console($event)"></nz-input>
+    <nz-input [(ngModel)]="inputValue" (nzFocus)="_focus($event)" (nzBlur)="_blur($event)" [nzPlaceHolder]="'Basic usage'" (ngModelChange)="_console($event)"></nz-input>
     <p>{{inputValue}}</p>`,
 
   styles: []
@@ -20,5 +20,13 @@ export class NzDemoInputBasicComponent implements OnInit {
 
   ngOnInit() {
   }
+
+  _focus($event) {
+    console.log($event);
+  }
+
+  _blur($event) {
+    console.log($event);
+  }
 }
 

src/showcase/nz-demo-input/nz-demo-input.html

@@ -102,6 +102,24 @@ <h3 id="Input"><span>nz-input</span>
           <td>bool</td>
           <td>false</td>
         </tr>
+        <tr>
+          <td>nzBlur</td>
+          <td>失去焦点回调</td>
+          <td>EventEmitter</td>
+          <td>无</td>
+        </tr>
+        <tr>
+          <td>nzFocus</td>
+          <td>获取焦点回调</td>
+          <td>EventEmitter</td>
+          <td>无</td>
+        </tr>
+        <tr>
+          <td>nzDisabled</td>
+          <td>是否禁用状态，默认为 false</td>
+          <td>bool</td>
+          <td>false</td>
+        </tr>
         <tr>
           <td>#addonBefore</td>
           <td>设置前置标签</td>