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1 /*******************************************************************************
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2 * Copyright (c) 2008 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module dwtx.jface.text.hyperlink.MultipleHyperlinkPresenter;
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14
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15 import dwt.dwthelper.utils;
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16
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17
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18 import dwt.DWT;
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19 import dwt.events.KeyAdapter;
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20 import dwt.events.KeyEvent;
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21 import dwt.events.KeyListener;
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22 import dwt.events.MouseAdapter;
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23 import dwt.events.MouseEvent;
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24 import dwt.events.MouseMoveListener;
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25 import dwt.events.SelectionAdapter;
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26 import dwt.events.SelectionEvent;
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27 import dwt.events.ShellAdapter;
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28 import dwt.events.ShellEvent;
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29 import dwt.graphics.Color;
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30 import dwt.graphics.Point;
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31 import dwt.graphics.RGB;
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32 import dwt.graphics.Rectangle;
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33 import dwt.layout.GridLayout;
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34 import dwt.widgets.Composite;
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35 import dwt.widgets.Control;
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36 import dwt.widgets.Display;
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37 import dwt.widgets.Event;
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38 import dwt.widgets.Listener;
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39 import dwt.widgets.Shell;
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40 import dwt.widgets.Table;
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41 import dwt.widgets.TableItem;
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42 import dwtx.jface.preference.IPreferenceStore;
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43 import dwtx.jface.text.AbstractInformationControl;
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44 import dwtx.jface.text.AbstractInformationControlManager;
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45 import dwtx.jface.text.IInformationControl;
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46 import dwtx.jface.text.IInformationControlCreator;
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47 import dwtx.jface.text.IInformationControlExtension2;
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48 import dwtx.jface.text.IInformationControlExtension3;
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49 import dwtx.jface.text.IRegion;
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50 import dwtx.jface.text.ITextHover;
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51 import dwtx.jface.text.ITextHoverExtension;
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52 import dwtx.jface.text.ITextViewer;
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53 import dwtx.jface.text.IWidgetTokenKeeper;
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54 import dwtx.jface.text.IWidgetTokenKeeperExtension;
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55 import dwtx.jface.text.IWidgetTokenOwner;
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56 import dwtx.jface.text.IWidgetTokenOwnerExtension;
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57 import dwtx.jface.text.JFaceTextUtil;
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58 import dwtx.jface.text.Region;
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59 import dwtx.jface.util.Geometry;
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60 import dwtx.jface.viewers.ColumnLabelProvider;
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61 import dwtx.jface.viewers.IStructuredContentProvider;
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62 import dwtx.jface.viewers.TableViewer;
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63 import dwtx.jface.viewers.Viewer;
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64
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65
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66 /**
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67 * A hyperlink presenter capable of showing multiple hyperlinks in a hover.
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68 *
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69 * @since 3.4
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70 */
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71 public class MultipleHyperlinkPresenter : DefaultHyperlinkPresenter {
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72
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73 /**
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74 * An information control capable of showing a list of hyperlinks. The hyperlinks can be opened.
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75 */
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76 private static class LinkListInformationControl : AbstractInformationControl , IInformationControlExtension2 {
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77
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78 private static final class LinkContentProvider : IStructuredContentProvider {
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79
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80 /*
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81 * @see dwtx.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
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82 */
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83 public Object[] getElements(Object inputElement) {
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84 return (Object[]) inputElement;
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85 }
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86
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87 /*
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88 * @see dwtx.jface.viewers.IContentProvider#dispose()
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89 */
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90 public void dispose() {
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91 }
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92
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93 /*
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94 * @see dwtx.jface.viewers.IContentProvider#inputChanged(dwtx.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
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95 */
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96 public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
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97 }
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98 }
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99
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100 private static final class LinkLabelProvider : ColumnLabelProvider {
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101 /*
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102 * @see dwtx.jface.viewers.ColumnLabelProvider#getText(java.lang.Object)
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103 */
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104 public String getText(Object element) {
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105 IHyperlink link= (IHyperlink)element;
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106 String text= link.getHyperlinkText();
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107 if (text !is null)
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108 return text;
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109 return HyperlinkMessages.getString("LinkListInformationControl.unknownLink"); //$NON-NLS-1$
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110 }
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111 }
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112
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113 private final MultipleHyperlinkHoverManager fManager;
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114
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115 private IHyperlink[] fInput;
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116 private Composite fParent;
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117 private Table fTable;
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118
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119 private Color fForegroundColor;
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120 private Color fBackgroundColor;
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121
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122
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123 /**
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124 * Creates a link list information control with the given shell as parent.
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125 *
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126 * @param parentShell the parent shell
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127 * @param manager the hover manager
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128 * @param foregroundColor the foreground color, must not be disposed
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129 * @param backgroundColor the background color, must not be disposed
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130 */
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131 public LinkListInformationControl(Shell parentShell, MultipleHyperlinkHoverManager manager, Color foregroundColor, Color backgroundColor) {
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132 super(parentShell, false);
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133 fManager= manager;
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134 fForegroundColor= foregroundColor;
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135 fBackgroundColor= backgroundColor;
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136 create();
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137 }
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138
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139 /*
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140 * @see dwtx.jface.text.IInformationControl#setInformation(java.lang.String)
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141 */
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142 public void setInformation(String information) {
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143 //replaced by IInformationControlExtension2#setInput(java.lang.Object)
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144 }
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145
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146 /*
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147 * @see dwtx.jface.text.IInformationControlExtension2#setInput(java.lang.Object)
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148 */
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149 public void setInput(Object input) {
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150 fInput= (IHyperlink[]) input;
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151 deferredCreateContent(fParent);
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152 }
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153
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154 /*
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155 * @see dwtx.jface.text.AbstractInformationControl#createContent(dwt.widgets.Composite)
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156 */
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157 protected void createContent(Composite parent) {
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158 fParent= parent;
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159 if ("win32".equals(DWT.getPlatform())) { //$NON-NLS-1$
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160 GridLayout layout= new GridLayout();
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161 layout.marginWidth= 0;
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162 layout.marginRight= 4;
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163 fParent.setLayout(layout);
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164 }
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165 fParent.setForeground(fForegroundColor);
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166 fParent.setBackground(fBackgroundColor);
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167 }
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168
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169 /*
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170 * @see dwtx.jface.text.AbstractInformationControl#computeSizeHint()
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171 */
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172 public Point computeSizeHint() {
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173 Point preferedSize= getShell().computeSize(DWT.DEFAULT, DWT.DEFAULT, true);
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174
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175 Point constraints= getSizeConstraints();
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176 if (constraints is null)
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177 return preferedSize;
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178
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179 if (fTable.getVerticalBar() is null || fTable.getHorizontalBar() is null)
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180 return Geometry.min(constraints, preferedSize);
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181
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182 int scrollBarWidth= fTable.getVerticalBar().getSize().x;
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183 int scrollBarHeight= fTable.getHorizontalBar().getSize().y;
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184
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185 int width;
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186 if (preferedSize.y - scrollBarHeight <= constraints.y) {
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187 width= preferedSize.x - scrollBarWidth;
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188 fTable.getVerticalBar().setVisible(false);
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189 } else {
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190 width= Math.min(preferedSize.x, constraints.x);
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191 }
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192
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193 int height;
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194 if (preferedSize.x - scrollBarWidth <= constraints.x) {
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195 height= preferedSize.y - scrollBarHeight;
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196 fTable.getHorizontalBar().setVisible(false);
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197 } else {
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198 height= Math.min(preferedSize.y, constraints.y);
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199 }
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200
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201 return new Point(width, height);
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202 }
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203
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204 private void deferredCreateContent(Composite parent) {
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205 fTable= new Table(parent, DWT.SINGLE | DWT.FULL_SELECTION);
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206 fTable.setLinesVisible(false);
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207 fTable.setHeaderVisible(false);
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208 fTable.setForeground(fForegroundColor);
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209 fTable.setBackground(fBackgroundColor);
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210
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211 final TableViewer viewer= new TableViewer(fTable);
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212 viewer.setContentProvider(new LinkContentProvider());
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213 viewer.setLabelProvider(new LinkLabelProvider());
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214 viewer.setInput(fInput);
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215 fTable.setSelection(0);
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216
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217 registerTableListeners();
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218
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219 getShell().addShellListener(new ShellAdapter() {
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220
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221 /*
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222 * @see dwt.events.ShellAdapter#shellActivated(dwt.events.ShellEvent)
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223 */
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224 public void shellActivated(ShellEvent e) {
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225 if (viewer.getTable().getSelectionCount() is 0) {
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226 viewer.getTable().setSelection(0);
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227 }
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228
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229 viewer.getTable().setFocus();
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230 }
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231 });
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232 }
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233
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234 private void registerTableListeners() {
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235
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236 fTable.addMouseMoveListener(new MouseMoveListener() {
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237 TableItem fLastItem= null;
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238
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239 public void mouseMove(MouseEvent e) {
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240 if (fTable.equals(e.getSource())) {
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241 Object o= fTable.getItem(new Point(e.x, e.y));
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242 if (o instanceof TableItem) {
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243 TableItem item= (TableItem) o;
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244 if (!o.equals(fLastItem)) {
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245 fLastItem= (TableItem) o;
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246 fTable.setSelection(new TableItem[] { fLastItem });
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247 } else if (e.y < fTable.getItemHeight() / 4) {
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248 // Scroll up
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249 int index= fTable.indexOf(item);
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250 if (index > 0) {
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251 fLastItem= fTable.getItem(index - 1);
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252 fTable.setSelection(new TableItem[] { fLastItem });
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253 }
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254 } else if (e.y > fTable.getBounds().height - fTable.getItemHeight() / 4) {
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255 // Scroll down
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256 int index= fTable.indexOf(item);
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257 if (index < fTable.getItemCount() - 1) {
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258 fLastItem= fTable.getItem(index + 1);
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259 fTable.setSelection(new TableItem[] { fLastItem });
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260 }
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261 }
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262 }
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263 }
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264 }
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265 });
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266
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267 fTable.addSelectionListener(new SelectionAdapter() {
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268 public void widgetSelected(SelectionEvent e) {
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269 openSelectedLink();
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270 }
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271 });
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272
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273 fTable.addMouseListener(new MouseAdapter() {
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274 public void mouseUp(MouseEvent e) {
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275 if (fTable.getSelectionCount() < 1)
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276 return;
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277
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278 if (e.button !is 1)
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279 return;
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280
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281 if (fTable.equals(e.getSource())) {
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282 Object o= fTable.getItem(new Point(e.x, e.y));
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283 TableItem selection= fTable.getSelection()[0];
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284 if (selection.equals(o))
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285 openSelectedLink();
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286 }
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287 }
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288 });
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289
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290 fTable.addKeyListener(new KeyAdapter() {
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291 public void keyPressed(KeyEvent e) {
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292 if (e.keyCode is 0x0D) // return
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293 openSelectedLink();
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294 }
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295 });
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296 }
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297
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298 /*
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299 * @see dwtx.jface.text.IInformationControlExtension#hasContents()
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300 */
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301 public bool hasContents() {
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302 return true;
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303 }
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304
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305 /**
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306 * Opens the currently selected link.
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307 */
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308 private void openSelectedLink() {
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309 TableItem selection= fTable.getSelection()[0];
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310 IHyperlink link= (IHyperlink)selection.getData();
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311 fManager.hideInformationControl();
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312 link.open();
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313 }
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314 }
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315
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316 private class MultipleHyperlinkHover : ITextHover, ITextHoverExtension {
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317
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318 /**
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319 * @see dwtx.jface.text.ITextHover#getHoverInfo(dwtx.jface.text.ITextViewer, dwtx.jface.text.IRegion)
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320 * @deprecated
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321 */
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322 public String getHoverInfo(ITextViewer textViewer, IRegion hoverRegion) {
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323 return null;
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324 }
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325
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326 /*
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327 * @see dwtx.jface.text.ITextHover#getHoverRegion(dwtx.jface.text.ITextViewer, int)
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328 */
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329 public IRegion getHoverRegion(ITextViewer textViewer, int offset) {
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330 return fSubjectRegion;
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331 }
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332
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333 /*
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334 * @see dwtx.jface.text.ITextHoverExtension2#getHoverInfo2(dwtx.jface.text.ITextViewer, dwtx.jface.text.IRegion)
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335 */
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336 public Object getHoverInfo2(ITextViewer textViewer, IRegion hoverRegion) {
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337 return fHyperlinks;
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338 }
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339
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340 /*
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341 * @see dwtx.jface.text.ITextHoverExtension#getHoverControlCreator()
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342 */
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343 public IInformationControlCreator getHoverControlCreator() {
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344 return new IInformationControlCreator() {
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345 public IInformationControl createInformationControl(Shell parent) {
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346 Color foregroundColor= fTextViewer.getTextWidget().getForeground();
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347 Color backgroundColor= fTextViewer.getTextWidget().getBackground();
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348 return new LinkListInformationControl(parent, fManager, foregroundColor, backgroundColor);
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349 }
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350 };
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351 }
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352 }
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353
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354 private static class MultipleHyperlinkHoverManager : AbstractInformationControlManager , IWidgetTokenKeeper, IWidgetTokenKeeperExtension {
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355
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356 private class Closer : IInformationControlCloser, Listener, KeyListener {
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357
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358 private Control fSubjectControl;
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359 private Display fDisplay;
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360 private IInformationControl fControl;
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361 private Rectangle fSubjectArea;
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362
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363 /*
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364 * @see dwtx.jface.text.AbstractInformationControlManager.IInformationControlCloser#setInformationControl(dwtx.jface.text.IInformationControl)
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365 */
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366 public void setInformationControl(IInformationControl control) {
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367 fControl= control;
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368 }
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369
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370 /*
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371 * @see dwtx.jface.text.AbstractInformationControlManager.IInformationControlCloser#setSubjectControl(dwt.widgets.Control)
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372 */
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373 public void setSubjectControl(Control subject) {
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374 fSubjectControl= subject;
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375 }
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376
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377 /*
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378 * @see dwtx.jface.text.AbstractInformationControlManager.IInformationControlCloser#start(dwt.graphics.Rectangle)
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379 */
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380 public void start(Rectangle subjectArea) {
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381 fSubjectArea= subjectArea;
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382
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383 fDisplay= fSubjectControl.getDisplay();
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384 if (!fDisplay.isDisposed()) {
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385 fDisplay.addFilter(DWT.FocusOut, this);
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386 fDisplay.addFilter(DWT.MouseMove, this);
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387 fTextViewer.getTextWidget().addKeyListener(this);
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388 }
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389 }
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390
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391 /*
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392 * @see dwtx.jface.text.AbstractInformationControlManager.IInformationControlCloser#stop()
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393 */
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394 public void stop() {
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395 if (fDisplay !is null && !fDisplay.isDisposed()) {
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396 fDisplay.removeFilter(DWT.FocusOut, this);
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397 fDisplay.removeFilter(DWT.MouseMove, this);
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398 fTextViewer.getTextWidget().removeKeyListener(this);
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399 }
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400
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401 fSubjectArea= null;
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402 }
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403
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404 /*
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405 * @see dwt.widgets.Listener#handleEvent(dwt.widgets.Event)
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406 */
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407 public void handleEvent(Event event) {
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408 switch (event.type) {
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409 case DWT.FocusOut:
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410 if (!fControl.isFocusControl())
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411 disposeInformationControl();
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412 break;
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413 case DWT.MouseMove:
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414 handleMouseMove(event);
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415 break;
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416 }
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417 }
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418
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419 /**
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420 * Handle mouse movement events.
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421 *
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422 * @param event the event
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423 */
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424 private void handleMouseMove(Event event) {
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425 if (!(event.widget instanceof Control))
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426 return;
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427
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428 if (fControl.isFocusControl())
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429 return;
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430
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431 Control eventControl= (Control) event.widget;
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432
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433 //transform coordinates to subject control:
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434 Point mouseLoc= event.display.map(eventControl, fSubjectControl, event.x, event.y);
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435
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436 if (fSubjectArea.contains(mouseLoc))
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437 return;
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438
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439 if (inKeepUpZone(mouseLoc.x, mouseLoc.y, ((IInformationControlExtension3) fControl).getBounds()))
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440 return;
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441
|
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442 hideInformationControl();
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443 }
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444
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445 /**
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446 * Tests whether a given mouse location is within the keep-up zone.
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447 * The hover should not be hidden as long as the mouse stays inside this zone.
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448 *
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449 * @param x the x coordinate, relative to the <em>subject control</em>
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450 * @param y the y coordinate, relative to the <em>subject control</em>
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451 * @param controlBounds the bounds of the current control
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452 *
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453 * @return <code>true</code> iff the mouse event occurred in the keep-up zone
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454 */
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|
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455 private bool inKeepUpZone(int x, int y, Rectangle controlBounds) {
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|
456 // +-----------+
|
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|
457 // |subjectArea|
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458 // +-----------+
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|
459 // |also keepUp|
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|
|
460 // ++-----------+-------+
|
|
|
461 // | totalBounds |
|
|
|
462 // +--------------------+
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463 if (fSubjectArea.contains(x, y))
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|
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464 return true;
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465
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466 Rectangle iControlBounds= fSubjectControl.getDisplay().map(null, fSubjectControl, controlBounds);
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|
|
467 Rectangle totalBounds= Geometry.copy(iControlBounds);
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|
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468 if (totalBounds.contains(x, y))
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|
|
469 return true;
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|
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470
|
|
|
471 int keepUpY= fSubjectArea.y + fSubjectArea.height;
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|
|
472 Rectangle alsoKeepUp= new Rectangle(fSubjectArea.x, keepUpY, fSubjectArea.width, totalBounds.y - keepUpY);
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|
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473 return alsoKeepUp.contains(x, y);
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|
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474 }
|
|
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475
|
|
|
476 /*
|
|
|
477 * @see dwt.events.KeyListener#keyPressed(dwt.events.KeyEvent)
|
|
|
478 */
|
|
|
479 public void keyPressed(KeyEvent e) {
|
|
|
480 }
|
|
|
481
|
|
|
482 /*
|
|
|
483 * @see dwt.events.KeyListener#keyReleased(dwt.events.KeyEvent)
|
|
|
484 */
|
|
|
485 public void keyReleased(KeyEvent e) {
|
|
|
486 hideInformationControl();
|
|
|
487 }
|
|
|
488
|
|
|
489 }
|
|
|
490
|
|
|
491 /**
|
|
|
492 * Priority of the hover managed by this manager.
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|
|
493 * Default value: One higher then for the hovers
|
|
|
494 * managed by TextViewerHoverManager.
|
|
|
495 */
|
|
|
496 private static final int WIDGET_TOKEN_PRIORITY= 1;
|
|
|
497
|
|
|
498 private final MultipleHyperlinkHover fHover;
|
|
|
499 private final ITextViewer fTextViewer;
|
|
|
500 private final MultipleHyperlinkPresenter fHyperlinkPresenter;
|
|
|
501 private Closer fCloser;
|
|
|
502 private bool fIsControlVisible;
|
|
|
503
|
|
|
504
|
|
|
505 /**
|
|
|
506 * Create a new MultipleHyperlinkHoverManager. The MHHM can show and hide
|
|
|
507 * the given MultipleHyperlinkHover inside the given ITextViewer.
|
|
|
508 *
|
|
|
509 * @param hover the hover to manage
|
|
|
510 * @param viewer the viewer to show the hover in
|
|
|
511 * @param hyperlinkPresenter the hyperlink presenter using this manager to present hyperlinks
|
|
|
512 */
|
|
|
513 public MultipleHyperlinkHoverManager(MultipleHyperlinkHover hover, ITextViewer viewer, MultipleHyperlinkPresenter hyperlinkPresenter) {
|
|
|
514 super(hover.getHoverControlCreator());
|
|
|
515
|
|
|
516 fHover= hover;
|
|
|
517 fTextViewer= viewer;
|
|
|
518 fHyperlinkPresenter= hyperlinkPresenter;
|
|
|
519
|
|
|
520 fCloser= new Closer();
|
|
|
521 setCloser(fCloser);
|
|
|
522 fIsControlVisible= false;
|
|
|
523 }
|
|
|
524
|
|
|
525 /*
|
|
|
526 * @see dwtx.jface.text.AbstractInformationControlManager#computeInformation()
|
|
|
527 */
|
|
|
528 protected void computeInformation() {
|
|
|
529 IRegion region= fHover.getHoverRegion(fTextViewer, -1);
|
|
|
530 if (region is null) {
|
|
|
531 setInformation(null, null);
|
|
|
532 return;
|
|
|
533 }
|
|
|
534
|
|
|
535 Rectangle area= JFaceTextUtil.computeArea(region, fTextViewer);
|
|
|
536 if (area is null || area.isEmpty()) {
|
|
|
537 setInformation(null, null);
|
|
|
538 return;
|
|
|
539 }
|
|
|
540
|
|
|
541 Object information= fHover.getHoverInfo2(fTextViewer, region);
|
|
|
542 setCustomInformationControlCreator(fHover.getHoverControlCreator());
|
|
|
543 setInformation(information, area);
|
|
|
544 }
|
|
|
545
|
|
|
546 /*
|
|
|
547 * @see dwtx.jface.text.AbstractInformationControlManager#computeInformationControlLocation(dwt.graphics.Rectangle, dwt.graphics.Point)
|
|
|
548 */
|
|
|
549 protected Point computeInformationControlLocation(Rectangle subjectArea, Point controlSize) {
|
|
|
550 Point result= super.computeInformationControlLocation(subjectArea, controlSize);
|
|
|
551
|
|
|
552 Point cursorLocation= fTextViewer.getTextWidget().getDisplay().getCursorLocation();
|
|
|
553 if (cursorLocation.x <= result.x + controlSize.x)
|
|
|
554 return result;
|
|
|
555
|
|
|
556 result.x= cursorLocation.x + 20 - controlSize.x;
|
|
|
557 return result;
|
|
|
558 }
|
|
|
559
|
|
|
560 /*
|
|
|
561 * @see dwtx.jface.text.AbstractInformationControlManager#showInformationControl(dwt.graphics.Rectangle)
|
|
|
562 */
|
|
|
563 protected void showInformationControl(Rectangle subjectArea) {
|
|
|
564 if (fTextViewer instanceof IWidgetTokenOwnerExtension) {
|
|
|
565 if (((IWidgetTokenOwnerExtension) fTextViewer).requestWidgetToken(this, WIDGET_TOKEN_PRIORITY))
|
|
|
566 super.showInformationControl(subjectArea);
|
|
|
567 } else if (fTextViewer instanceof IWidgetTokenOwner) {
|
|
|
568 if (((IWidgetTokenOwner) fTextViewer).requestWidgetToken(this))
|
|
|
569 super.showInformationControl(subjectArea);
|
|
|
570 } else {
|
|
|
571 super.showInformationControl(subjectArea);
|
|
|
572 }
|
|
|
573
|
|
|
574 fIsControlVisible= true;
|
|
|
575 }
|
|
|
576
|
|
|
577 /*
|
|
|
578 * @see dwtx.jface.text.AbstractInformationControlManager#hideInformationControl()
|
|
|
579 */
|
|
|
580 protected void hideInformationControl() {
|
|
|
581 super.hideInformationControl();
|
|
|
582
|
|
|
583 if (fTextViewer instanceof IWidgetTokenOwner) {
|
|
|
584 ((IWidgetTokenOwner) fTextViewer).releaseWidgetToken(this);
|
|
|
585 }
|
|
|
586
|
|
|
587 fIsControlVisible= false;
|
|
|
588 fHyperlinkPresenter.hideHyperlinks();
|
|
|
589 }
|
|
|
590
|
|
|
591 /*
|
|
|
592 * @see dwtx.jface.text.AbstractInformationControlManager#disposeInformationControl()
|
|
|
593 */
|
|
|
594 public void disposeInformationControl() {
|
|
|
595 super.disposeInformationControl();
|
|
|
596
|
|
|
597 if (fTextViewer instanceof IWidgetTokenOwner) {
|
|
|
598 ((IWidgetTokenOwner) fTextViewer).releaseWidgetToken(this);
|
|
|
599 }
|
|
|
600
|
|
|
601 fIsControlVisible= false;
|
|
|
602 fHyperlinkPresenter.hideHyperlinks();
|
|
|
603 }
|
|
|
604
|
|
|
605 /*
|
|
|
606 * @see dwtx.jface.text.IWidgetTokenKeeper#requestWidgetToken(dwtx.jface.text.IWidgetTokenOwner)
|
|
|
607 */
|
|
|
608 public bool requestWidgetToken(IWidgetTokenOwner owner) {
|
|
|
609 hideInformationControl();
|
|
|
610 return true;
|
|
|
611 }
|
|
|
612
|
|
|
613 /*
|
|
|
614 * @see dwtx.jface.text.IWidgetTokenKeeperExtension#requestWidgetToken(dwtx.jface.text.IWidgetTokenOwner, int)
|
|
|
615 */
|
|
|
616 public bool requestWidgetToken(IWidgetTokenOwner owner, int priority) {
|
|
|
617 if (priority < WIDGET_TOKEN_PRIORITY)
|
|
|
618 return false;
|
|
|
619
|
|
|
620 hideInformationControl();
|
|
|
621 return true;
|
|
|
622 }
|
|
|
623
|
|
|
624 /*
|
|
|
625 * @see dwtx.jface.text.IWidgetTokenKeeperExtension#setFocus(dwtx.jface.text.IWidgetTokenOwner)
|
|
|
626 */
|
|
|
627 public bool setFocus(IWidgetTokenOwner owner) {
|
|
|
628 return false;
|
|
|
629 }
|
|
|
630
|
|
|
631 /**
|
|
|
632 * Returns <code>true</code> if the information control managed by
|
|
|
633 * this manager is visible, <code>false</code> otherwise.
|
|
|
634 *
|
|
|
635 * @return <code>true</code> if information control is visible
|
|
|
636 */
|
|
|
637 public bool isInformationControlVisible() {
|
|
|
638 return fIsControlVisible;
|
|
|
639 }
|
|
|
640 }
|
|
|
641
|
|
|
642 private ITextViewer fTextViewer;
|
|
|
643
|
|
|
644 private IHyperlink[] fHyperlinks;
|
|
|
645 private Region fSubjectRegion;
|
|
|
646 private MultipleHyperlinkHoverManager fManager;
|
|
|
647
|
|
|
648 /**
|
|
|
649 * Creates a new multiple hyperlink presenter which uses
|
|
|
650 * {@link #HYPERLINK_COLOR} to read the color from the given preference store.
|
|
|
651 *
|
|
|
652 * @param store the preference store
|
|
|
653 */
|
|
|
654 public MultipleHyperlinkPresenter(IPreferenceStore store) {
|
|
|
655 super(store);
|
|
|
656 }
|
|
|
657
|
|
|
658 /**
|
|
|
659 * Creates a new multiple hyperlink presenter.
|
|
|
660 *
|
|
|
661 * @param color the hyperlink color, to be disposed by the caller
|
|
|
662 */
|
|
|
663 public MultipleHyperlinkPresenter(RGB color) {
|
|
|
664 super(color);
|
|
|
665 }
|
|
|
666
|
|
|
667 /*
|
|
|
668 * @see dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter#install(dwtx.jface.text.ITextViewer)
|
|
|
669 */
|
|
|
670 public void install(ITextViewer viewer) {
|
|
|
671 super.install(viewer);
|
|
|
672 fTextViewer= viewer;
|
|
|
673
|
|
|
674 fManager= new MultipleHyperlinkHoverManager(new MultipleHyperlinkHover(), fTextViewer, this);
|
|
|
675 fManager.install(viewer.getTextWidget());
|
|
|
676 fManager.setSizeConstraints(100, 12, false, true);
|
|
|
677 }
|
|
|
678
|
|
|
679 /*
|
|
|
680 * @see dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter#uninstall()
|
|
|
681 */
|
|
|
682 public void uninstall() {
|
|
|
683 super.uninstall();
|
|
|
684
|
|
|
685 if (fTextViewer !is null) {
|
|
|
686 fManager.dispose();
|
|
|
687
|
|
|
688 fTextViewer= null;
|
|
|
689 }
|
|
|
690 }
|
|
|
691
|
|
|
692 /*
|
|
|
693 * @see dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter#canShowMultipleHyperlinks()
|
|
|
694 */
|
|
|
695 public bool canShowMultipleHyperlinks() {
|
|
|
696 return true;
|
|
|
697 }
|
|
|
698
|
|
|
699 /*
|
|
|
700 * @see dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter#canHideHyperlinks()
|
|
|
701 */
|
|
|
702 public bool canHideHyperlinks() {
|
|
|
703 return !fManager.isInformationControlVisible();
|
|
|
704 }
|
|
|
705
|
|
|
706 /*
|
|
|
707 * @see dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter#hideHyperlinks()
|
|
|
708 */
|
|
|
709 public void hideHyperlinks() {
|
|
|
710 super.hideHyperlinks();
|
|
|
711
|
|
|
712 fHyperlinks= null;
|
|
|
713 }
|
|
|
714
|
|
|
715 /*
|
|
|
716 * @see dwtx.jface.text.hyperlink.DefaultHyperlinkPresenter#showHyperlinks(dwtx.jface.text.hyperlink.IHyperlink[])
|
|
|
717 */
|
|
|
718 public void showHyperlinks(IHyperlink[] hyperlinks) {
|
|
|
719 super.showHyperlinks(new IHyperlink[] { hyperlinks[0] });
|
|
|
720
|
|
|
721 fSubjectRegion= null;
|
|
|
722 fHyperlinks= hyperlinks;
|
|
|
723
|
|
|
724 if (hyperlinks.length is 1)
|
|
|
725 return;
|
|
|
726
|
|
|
727 int start= hyperlinks[0].getHyperlinkRegion().getOffset();
|
|
|
728 int end= start + hyperlinks[0].getHyperlinkRegion().getLength();
|
|
|
729
|
|
|
730 for (int i= 1; i < hyperlinks.length; i++) {
|
|
|
731 int hstart= hyperlinks[i].getHyperlinkRegion().getOffset();
|
|
|
732 int hend= hstart + hyperlinks[i].getHyperlinkRegion().getLength();
|
|
|
733
|
|
|
734 start= Math.min(start, hstart);
|
|
|
735 end= Math.max(end, hend);
|
|
|
736 }
|
|
|
737
|
|
|
738 fSubjectRegion= new Region(start, end - start);
|
|
|
739
|
|
|
740 fManager.showInformation();
|
|
|
741 }
|
|
|
742 }
|
