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1 /*! |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Dialpad multitap handler |
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15 * |
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16 */ |
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17 |
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18 #include <QKeyEvent> |
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19 #include <hbapplication.h> |
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20 #include <hblineedit.h> |
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21 #include "dialpadmultitaphandler.h" |
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22 |
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23 static const int DialpadMaxMultitapTime = 800; // ms |
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24 static const int DialpadAsteriskMultitapCount = 4; |
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25 static const int DialpadAsteriskMultitapChars[DialpadAsteriskMultitapCount] = |
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26 {Qt::Key_Asterisk, Qt::Key_Plus, Qt::Key_P, Qt::Key_W}; |
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27 |
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28 |
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29 DialpadMultitapHandler::DialpadMultitapHandler( |
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30 HbLineEdit& editor, |
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31 QObject* parent) : |
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32 QObject(parent), |
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33 mEditor(editor), |
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34 mAsteriskMultitapIndex(0), |
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35 mGeneratedAsterisk(false) |
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36 { |
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37 // extra characters |
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38 mExtraChar.insert(Qt::Key_Asterisk, '*'); |
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39 mExtraChar.insert(Qt::Key_Plus, '+'); |
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40 mExtraChar.insert(Qt::Key_P, 'p'); |
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41 mExtraChar.insert(Qt::Key_W, 'w'); |
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42 } |
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43 |
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44 DialpadMultitapHandler::~DialpadMultitapHandler() |
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45 { |
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46 } |
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47 |
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48 bool DialpadMultitapHandler::eventFilter(QObject *watched, QEvent *event) |
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49 { |
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50 if (watched!=&mEditor) { |
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51 return false; |
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52 } |
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53 |
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54 int type = event->type(); |
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55 |
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56 if (type==QEvent::KeyPress) { |
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57 QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event); |
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58 if (isNumericKey(keyEvent->key()) && |
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59 keyEvent->text().isEmpty() ) { |
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60 return true; |
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61 } |
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62 } |
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63 |
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64 bool keyEventEaten = false; |
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65 |
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66 if (type==QEvent::KeyPress) { |
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67 QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event); |
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68 |
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69 if (keyEvent->key()==Qt::Key_Asterisk) { |
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70 if ((mMultitapTimer.elapsed() <= DialpadMaxMultitapTime) && |
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71 !mGeneratedAsterisk) { |
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72 // remove the last char by generated backspace |
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73 QKeyEvent backspaceEvent(QEvent::KeyPress, |
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74 Qt::Key_Backspace, |
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75 Qt::NoModifier, ""); |
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76 HbApplication::sendEvent(&mEditor,&backspaceEvent); |
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77 |
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78 // generate +,p,w,* character |
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79 mAsteriskMultitapIndex = |
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80 ++mAsteriskMultitapIndex % DialpadAsteriskMultitapCount; |
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81 |
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82 int key = DialpadAsteriskMultitapChars[mAsteriskMultitapIndex]; |
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83 |
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84 // Allow + character only as a first char in editor |
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85 int cursorPosition = mEditor.cursorPosition(); |
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86 if(cursorPosition != 0 && key == Qt::Key_Plus) { |
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87 mAsteriskMultitapIndex = ++mAsteriskMultitapIndex; |
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88 Q_ASSERT(mAsteriskMultitapIndex < DialpadAsteriskMultitapCount); |
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89 key = DialpadAsteriskMultitapChars[mAsteriskMultitapIndex]; |
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90 } |
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91 |
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92 QKeyEvent generatedEvent(QEvent::KeyPress, key, |
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93 Qt::KeypadModifier, |
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94 mExtraChar.value(key)); |
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95 if (key==Qt::Key_Asterisk) { |
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96 mGeneratedAsterisk = true; |
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97 } |
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98 |
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99 HbApplication::sendEvent(&mEditor,&generatedEvent); |
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100 keyEventEaten = true; |
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101 mMultitapTimer.start(); |
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102 } else { |
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103 mMultitapTimer.start(); |
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104 mAsteriskMultitapIndex = 0; |
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105 } |
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106 |
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107 mGeneratedAsterisk = false; |
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108 } |
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109 } |
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110 |
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111 return keyEventEaten; |
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112 } |
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113 |
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114 bool DialpadMultitapHandler::isNumericKey(int key) |
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115 { |
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116 if (key==Qt::Key_Yes || key==Qt::Key_Backspace) { |
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117 return false; |
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118 } else { |
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119 return true; |
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120 } |
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121 } |