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      1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "base/mac/scoped_nsobject.h"
      6 #import "chrome/browser/ui/cocoa/cocoa_test_helper.h"
      7 #import "chrome/browser/ui/cocoa/draggable_button.h"
      8 #include "testing/gtest/include/gtest/gtest.h"
      9 #include "testing/platform_test.h"
     10 #import "ui/base/test/cocoa_test_event_utils.h"
     11 
     12 @interface TestableDraggableButton : DraggableButton {
     13   NSUInteger dragCount_;
     14   BOOL wasTriggered_;
     15 }
     16 - (void)trigger:(id)sender;
     17 - (BOOL)wasTriggered;
     18 - (NSUInteger)dragCount;
     19 @end
     20 
     21 @implementation TestableDraggableButton
     22 - (id)initWithFrame:(NSRect)frame {
     23   if ((self = [super initWithFrame:frame])) {
     24     dragCount_ = 0;
     25     wasTriggered_ = NO;
     26   }
     27   return self;
     28 }
     29 - (void)beginDrag:(NSEvent*)theEvent {
     30   dragCount_++;
     31 }
     32 
     33 - (void)trigger:(id)sender {
     34   wasTriggered_ = YES;
     35 }
     36 
     37 - (BOOL)wasTriggered {
     38   return wasTriggered_;
     39 }
     40 
     41 - (NSUInteger)dragCount {
     42   return dragCount_;
     43 }
     44 @end
     45 
     46 class DraggableButtonTest : public CocoaTest {};
     47 
     48 // Make sure the basic case of "click" still works.
     49 TEST_F(DraggableButtonTest, DownUp) {
     50   base::scoped_nsobject<TestableDraggableButton> button(
     51       [[TestableDraggableButton alloc]
     52           initWithFrame:NSMakeRect(0, 0, 500, 500)]);
     53   [[test_window() contentView] addSubview:button.get()];
     54   [button setTarget:button];
     55   [button setAction:@selector(trigger:)];
     56   EXPECT_FALSE([button wasTriggered]);
     57   NSEvent* downEvent =
     58       cocoa_test_event_utils::MouseEventAtPoint(NSMakePoint(10,10),
     59                                                 NSLeftMouseDown,
     60                                                 0);
     61   NSEvent* upEvent =
     62       cocoa_test_event_utils::MouseEventAtPoint(NSMakePoint(10,10),
     63                                                 NSLeftMouseUp,
     64                                                 0);
     65   [NSApp postEvent:upEvent atStart:YES];
     66   [test_window() sendEvent:downEvent];
     67   EXPECT_TRUE([button wasTriggered]);  // confirms target/action fired
     68 }
     69 
     70 TEST_F(DraggableButtonTest, DraggableHysteresis) {
     71   base::scoped_nsobject<TestableDraggableButton> button(
     72       [[TestableDraggableButton alloc]
     73           initWithFrame:NSMakeRect(0, 0, 500, 500)]);
     74   [[test_window() contentView] addSubview:button.get()];
     75   NSEvent* downEvent =
     76       cocoa_test_event_utils::MouseEventAtPoint(NSMakePoint(10,10),
     77                                                 NSLeftMouseDown,
     78                                                 0);
     79   NSEvent* firstMove =
     80       cocoa_test_event_utils::MouseEventAtPoint(NSMakePoint(11,11),
     81                                                 NSLeftMouseDragged,
     82                                                 0);
     83   NSEvent* firstUpEvent =
     84       cocoa_test_event_utils::MouseEventAtPoint(NSMakePoint(11,11),
     85                                                 NSLeftMouseUp,
     86                                                 0);
     87   NSEvent* secondMove =
     88       cocoa_test_event_utils::MouseEventAtPoint(NSMakePoint(100,100),
     89                                                 NSLeftMouseDragged,
     90                                                 0);
     91   NSEvent* secondUpEvent =
     92       cocoa_test_event_utils::MouseEventAtPoint(NSMakePoint(100,100),
     93                                                 NSLeftMouseUp,
     94                                                 0);
     95   // If the mouse only moves one pixel in each direction
     96   // it should not cause a drag.
     97   [NSApp postEvent:firstUpEvent atStart:YES];
     98   [NSApp postEvent:firstMove atStart:YES];
     99   [button mouseDown:downEvent];
    100   EXPECT_EQ(0U, [button dragCount]);
    101 
    102   // If the mouse moves > 5 pixels in either direciton
    103   // it should cause a drag.
    104   [NSApp postEvent:secondUpEvent atStart:YES];
    105   [NSApp postEvent:secondMove atStart:YES];
    106   [button mouseDown:downEvent];
    107   EXPECT_EQ(1U, [button dragCount]);
    108 }
    109 
    110 TEST_F(DraggableButtonTest, ResetState) {
    111   base::scoped_nsobject<TestableDraggableButton> button(
    112       [[TestableDraggableButton alloc]
    113           initWithFrame:NSMakeRect(0, 0, 500, 500)]);
    114   [[test_window() contentView] addSubview:button.get()];
    115   NSEvent* downEvent =
    116       cocoa_test_event_utils::MouseEventAtPoint(NSMakePoint(10,10),
    117                                                 NSLeftMouseDown,
    118                                                 0);
    119   NSEvent* moveEvent =
    120       cocoa_test_event_utils::MouseEventAtPoint(NSMakePoint(100,100),
    121                                                 NSLeftMouseDragged,
    122                                                 0);
    123   NSEvent* upEvent =
    124       cocoa_test_event_utils::MouseEventAtPoint(NSMakePoint(100,100),
    125                                                 NSLeftMouseUp,
    126                                                 0);
    127   // If the mouse moves > 5 pixels in either direciton it should cause a drag.
    128   [NSApp postEvent:upEvent atStart:YES];
    129   [NSApp postEvent:moveEvent atStart:YES];
    130   [button mouseDown:downEvent];
    131 
    132   // The button should not be highlighted after the drag finishes.
    133   EXPECT_FALSE([[button cell] isHighlighted]);
    134   EXPECT_EQ(1U, [button dragCount]);
    135 
    136   // We should be able to initiate another drag immediately after the first one.
    137   [NSApp postEvent:upEvent atStart:YES];
    138   [NSApp postEvent:moveEvent atStart:YES];
    139   [button mouseDown:downEvent];
    140   EXPECT_EQ(2U, [button dragCount]);
    141   EXPECT_FALSE([[button cell] isHighlighted]);
    142 }
    143