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1
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// Demonstrates no focus transfer in frames with focusable contents
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2
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3
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// In this demo, 5 frames are defined with 8 buttons:
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4
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// 1. one outermost frame 'outerframe' with 'focusable4' and 'focusable6' buttons
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5
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// 2. two frames in 'outerFrame':
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6
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// # 'innerFrame' (with 'focusable1' and 'focusable2' buttons)
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7
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// # 'innerFrame2' (with 'focusable3' and 'focusable8' buttons) .
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8
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// 3. 'innerMostFrame' in 'innerFrame2' with the 'focusable5' button
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9
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// 4. 'innerInnerMostFrame' in 'innerMostFrame' with the 'focusable7' button.
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10
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11
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// Output message serial number to make message identification easier
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12
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DEFINE VARIABLE visitCounter AS INTEGER NO-UNDO.
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13
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14
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DEFINE BUTTON focusable4.
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15
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DEFINE BUTTON focusable6.
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16
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DEFINE FRAME outerFrame
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17
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focusable4 AT ROW 3.5 COL 1
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18
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focusable6
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19
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WITH SIZE 80 BY 15.
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20
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21
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DEFINE BUTTON focusable1.
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22
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DEFINE BUTTON focusable2.
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23
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DEFINE FRAME innerFrame
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24
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focusable1 focusable2
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25
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WITH SIZE 60 BY 2
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26
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AT ROW 1 COL 1.
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27
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FRAME innerFrame:FRAME = FRAME outerFrame:HANDLE.
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28
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29
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DEFINE BUTTON focusable3.
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30
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DEFINE BUTTON focusable8.
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31
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DEFINE FRAME innerFrame2
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32
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focusable3 focusable8
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33
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WITH SIZE 60 BY 10
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34
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AT COLUMN 1 ROW 5.
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35
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FRAME innerFrame2:FRAME = FRAME outerFrame:HANDLE.
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36
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37
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DEFINE BUTTON focusable5.
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38
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DEFINE FRAME innerMostFrame
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39
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focusable5
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40
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WITH SIZE 50 BY 4
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41
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AT COLUMN 1 ROW 6.
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42
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FRAME innerMostFrame:FRAME = FRAME innerFrame2:HANDLE.
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43
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44
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DEFINE BUTTON focusable7.
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45
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DEFINE FRAME innerInnerMostFrame
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46
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focusable7
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47
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WITH SIZE 40 BY 2
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48
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AT COLUMN 1 ROW 2.5.
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49
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FRAME innerInnerMostFrame:FRAME = FRAME innerMostFrame:HANDLE.
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50
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51
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// Print message number, widget name, message argument and current FOCUS HANDLE
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52
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// if set
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53
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PROCEDURE Print:
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54
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DEFINE INPUT PARAMETER w AS HANDLE NO-UNDO.
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55
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DEFINE INPUT PARAMETER msg AS CHARACTER NO-UNDO.
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56
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DEFINE VARIABLE hFocus AS HANDLE NO-UNDO.
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57
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hFocus = FOCUS.
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58
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DEFINE VARIABLE cFocusName AS CHARACTER NO-UNDO.
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59
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IF FOCUS <> ? THEN
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60
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cFocusName = FOCUS:NAME.
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61
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MESSAGE visitCounter w:NAME msg "FOCUS:" cFocusName.
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62
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visitCounter = visitCounter + 1.
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63
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END PROCEDURE.
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64
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65
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// Run the Print procedure with 'ENTRY' as argument
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66
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PROCEDURE PrintEntry:
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67
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DEFINE INPUT PARAMETER w AS HANDLE NO-UNDO.
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68
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RUN Print(w, "Entry").
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69
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w:BGCOLOR = 2.
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70
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END PROCEDURE.
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71
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72
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// Run the Print procedure with 'LEAVE' as argument
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73
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PROCEDURE PrintLeave:
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74
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DEFINE INPUT PARAMETER w AS HANDLE NO-UNDO.
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75
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RUN Print(w, "Leave").
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76
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w:BGCOLOR = 4.
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77
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END PROCEDURE.
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78
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79
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// Print frame tab ring
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80
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PROCEDURE PrintTabRing:
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81
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DEFINE INPUT PARAMETER fr AS HANDLE NO-UNDO.
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82
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DEFINE VARIABLE w AS HANDLE NO-UNDO.
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83
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MESSAGE "Tab ring" fr:NAME.
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84
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w = fr:FIRST-CHILD:FIRST-TAB-ITEM.
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85
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DO WHILE w <> ?:
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86
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MESSAGE w:NAME.
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87
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w = w:NEXT-TAB-ITEM.
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88
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END.
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89
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END PROCEDURE.
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90
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91
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ON ENTRY OF FRAME outerFrame DO:
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92
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RUN PrintEntry(FRAME outerFrame:HANDLE).
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93
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//RETURN NO-APPLY.
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94
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END.
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95
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ON LEAVE OF FRAME outerFrame DO:
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96
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RUN PrintLeave(FRAME outerFrame:HANDLE).
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97
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//RETURN NO-APPLY.
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98
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END.
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99
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100
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ON ENTRY OF FRAME innerFrame DO:
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101
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RUN PrintEntry(FRAME innerFrame:HANDLE).
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102
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//RETURN NO-APPLY.
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103
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END.
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104
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105
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ON LEAVE OF FRAME innerFrame RUN PrintLeave(FRAME innerFrame:HANDLE).
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106
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107
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ON ENTRY OF FRAME innerFrame2 RUN PrintEntry(FRAME innerFrame2:HANDLE).
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108
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ON LEAVE OF FRAME innerFrame2 RUN PrintLeave(FRAME innerFrame2:HANDLE).
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109
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110
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ON ENTRY OF FRAME innerMostFrame RUN PrintEntry(FRAME innerMostFrame:HANDLE).
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111
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ON LEAVE OF FRAME innerMostFrame RUN PrintLeave(FRAME innerMostFrame:HANDLE).
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112
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113
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ON ENTRY OF FRAME innerInnerMostFrame RUN PrintEntry(FRAME innerInnerMostFrame:HANDLE).
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114
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ON LEAVE OF FRAME innerInnerMostFrame RUN PrintLeave(FRAME innerInnerMostFrame:HANDLE).
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115
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116
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ON ENTRY OF focusable1 DO:
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117
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RUN PrintEntry(focusable1:HANDLE).
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118
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//RETURN NO-APPLY.
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119
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END.
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120
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121
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ON LEAVE OF focusable1 DO:
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122
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RUN PrintLeave(focusable1:HANDLE).
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123
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//RETURN NO-APPLY.
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124
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END.
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125
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126
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ON ENTRY OF focusable2 DO:
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127
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RUN PrintEntry(focusable2:HANDLE).
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128
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END.
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129
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ON LEAVE OF focusable2 DO:
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130
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RUN PrintLeave(focusable2:HANDLE).
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131
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END.
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132
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133
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ON ENTRY OF focusable3 RUN PrintEntry(focusable3:HANDLE).
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134
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ON LEAVE OF focusable3 RUN PrintLeave(focusable3:HANDLE).
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135
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136
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ON ENTRY OF focusable4 DO:
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137
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RUN PrintEntry(focusable4:HANDLE).
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138
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END.
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139
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ON LEAVE OF focusable4 DO:
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140
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RUN PrintLeave(focusable4:HANDLE).
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141
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END.
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142
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143
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ON ENTRY OF focusable5 RUN PrintEntry(focusable5:HANDLE).
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144
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ON LEAVE OF focusable5 RUN PrintLeave(focusable5:HANDLE).
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145
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146
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ON ENTRY OF focusable6 RUN PrintEntry(focusable6:HANDLE).
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147
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ON LEAVE OF focusable6 RUN PrintLeave(focusable6:HANDLE).
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148
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149
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ON ENTRY OF focusable7 RUN PrintEntry(focusable7:HANDLE).
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150
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ON LEAVE OF focusable7 RUN PrintLeave(focusable7:HANDLE).
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151
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152
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ON ENTRY OF focusable8 RUN PrintEntry(focusable8:HANDLE).
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153
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ON LEAVE OF focusable8 RUN PrintLeave(focusable8:HANDLE).
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154
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155
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ON CHOOSE OF focusable1 DO:
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156
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ENABLE focusable2 WITH FRAME innerFrame.
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157
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END.
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158
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159
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ON 'a' ANYWHERE DO:
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160
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DEFINE VARIABLE hFocus AS HANDLE NO-UNDO.
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161
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hFocus = FOCUS.
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162
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DEFINE VARIABLE cFocusName AS CHARACTER NO-UNDO.
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163
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IF FOCUS <> ? THEN
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164
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cFocusName = FOCUS:NAME.
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165
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MESSAGE "FOCUS:" cFocusName.
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166
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END.
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167
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168
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//RUN PrintTabRing(FRAME outerFrame:HANDLE). // focusable4, focusable6, innerFrame, innerFrame2
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169
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170
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//ENABLE ALL WITH FRAME innerFrame2. // Temporarily
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171
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172
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RUN PrintTabRing(FRAME outerFrame:HANDLE).
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173
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ENABLE focusable4 focusable6 WITH FRAME outerFrame.
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174
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RUN PrintTabRing(FRAME outerFrame:HANDLE).
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175
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ENABLE focusable6 focusable4 WITH FRAME outerFrame.
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176
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RUN PrintTabRing(FRAME outerFrame:HANDLE).
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177
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178
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//RUN PrintTabRing(FRAME outerFrame:HANDLE). // innerFrame(1,2), innerFrame2(3), focusable4, focusable5
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179
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180
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ENABLE focusable2 WITH FRAME innerFrame.
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181
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ENABLE ALL WITH FRAME innerMostFrame.
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182
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ENABLE focusable7 WITH FRAME innerInnerMostFrame.
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183
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184
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//RUN PrintTabRing(FRAME outerFrame:HANDLE). // innerFrame, innerFrame2, focusable4, focusable5
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185
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186
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// OE Now enabled: 2, 4, 6, 5. Focused: 2
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187
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//
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188
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189
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WAIT-FOR GO OF FRAME outerFrame.
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190
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//WAIT-FOR GO OF THIS-PROCEDURE.
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191
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