1 | //
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2 | // ICeCoffEEWebKit.m
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3 | // ICeCoffEE APE
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4 | //
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5 | // Created by Nicholas Riley on Sun Jan 19 2003.
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6 | // Copyright (c) 2003 Nicholas Riley. All rights reserved.
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7 | //
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8 |
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9 | #import "ICeCoffEEWebKit.h"
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10 | #import "ICeCoffEEWebPolicyDelegate.h"
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11 | #import "ICeCoffEEParser.h"
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12 | #import "ICeCoffEETrigger.h"
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13 | #import <WebKit/WebKit.h>
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14 | #import <unistd.h>
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15 |
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16 | // Safari 3.1 and earlier (pre-r31014)
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17 | // eliminated in http://bugs.webkit.org/show_bug.cgi?id=17640
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18 | // but convertNSRangeToDOMRange: (temporarily) restored in r39145
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19 | @interface WebCoreFrameBridge : NSObject
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20 | - (DOMRange *)convertNSRangeToDOMRange:(NSRange)range;
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21 | - (NSString *)stringForRange:(DOMRange *)range;
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22 | @end
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23 |
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24 | // r31014 and later; likely to move again
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25 | @interface WebFrame (WebFrameInternal)
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26 | - (DOMRange *)_convertNSRangeToDOMRange:(NSRange)range;
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27 | - (NSString *)_stringForRange:(DOMRange *)range;
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28 | @end
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29 |
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30 | // XXX WebHTMLView is going away
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31 | @interface WebHTMLView : NSObject
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32 |
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33 | - (NSRect)selectionRect;
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34 | - (DOMRange *)_documentRange;
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35 |
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36 | - (WebView *)_webView;
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37 | - (WebCoreFrameBridge *)_bridge; // moved from WebNSViewExtras in r14032; removed in r31014 then (temporarily) restored in r39145
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38 | - (WebFrame *)_frame; // moved from WebNSViewExtras in r14032
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39 |
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40 | @end
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41 |
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42 | // from WebViewPrivate.h (will become public, part of WebViewEditing)
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43 | @interface WebView (webViewGrammarChecking)
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44 | - (BOOL)isGrammarCheckingEnabled;
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45 | - (void)setGrammarCheckingEnabled:(BOOL)flag;
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46 | @end
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47 |
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48 | @implementation ICeCoffEEWebKit
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49 |
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50 | - (NSMenu *)menuForEvent:(NSEvent *)e;
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51 | {
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52 | NSMenu *myMenu = [super menuForEvent: e];
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53 | return ICCF_MenuForEvent(self, myMenu, e);
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54 | }
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55 |
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56 | static NSEvent *downEvent = nil;
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57 | static id /* (WebPolicyDelegate) */ policyDelegate;
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58 | static id /* DOMRange */ selectedRange;
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59 |
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60 | static BOOL ICCF_DOMParentOfClass(DOMNode *node, Class cls) {
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61 | do {
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62 | if ([node isKindOfClass: cls])
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63 | return YES;
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64 | } while ( (node = [node parentNode]) != nil);
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65 |
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66 | return NO;
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67 | }
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68 | #define ICCF_NodeIs(elt) [clickedNode isKindOfClass: NSClassFromString(@"DOMHTML"elt"Element")]
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69 | #define ICCF_DOMParentIs(elt) ICCF_DOMParentOfClass(clickedNode, NSClassFromString(@"DOMHTML"elt"Element"))
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70 |
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71 | - (void)mouseDown:(NSEvent *)e;
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72 | {
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73 | [downEvent release]; downEvent = nil;
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74 | if (ICCF_enabled && ICCF_prefs.commandClickEnabled && ICCF_EventIsCommandMouseDown(e)) {
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75 | if ([self respondsToSelector: @selector(_webView)]) {
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76 | WebView *webView = [(WebHTMLView *)self _webView];
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77 |
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78 | // check that the Command-click isn't being used for discontiguous selection
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79 | NSPoint viewClickPt = [webView convertPoint: [e locationInWindow] fromView: nil];
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80 | NSDictionary *elementDict = [webView elementAtPoint: viewClickPt];
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81 | DOMNode *clickedNode = [elementDict objectForKey: @"WebElementDOMNode"];
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82 | if (clickedNode != nil && ICCF_NodeIs("Select")) {
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83 | [super mouseDown: e];
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84 | return;
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85 | }
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86 |
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87 | // save selection: it may be deselected on super mouseDown
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88 | selectedRange = [[webView selectedDOMRange] retain];
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89 |
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90 | // stop any URL launching from happening
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91 | if ([webView isEditable]) {
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92 | policyDelegate = [[webView policyDelegate] retain];
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93 | [webView setPolicyDelegate: [ICeCoffEEWebPolicyDelegate sharedDelegate]];
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94 | }
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95 |
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96 | downEvent = [e retain];
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97 | }
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98 | }
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99 | [super mouseDown: e];
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100 | }
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101 |
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102 | - (void)mouseUp:(NSEvent *)e;
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103 | {
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104 | [super mouseUp: e];
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105 |
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106 | if (downEvent == nil)
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107 | return;
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108 |
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109 | WebView *webView = [(WebHTMLView *)self _webView];
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110 | BOOL webViewIsEditable = [webView isEditable];
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111 | BOOL elementIsEditable = YES; // don't restore
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112 | BOOL isContinuousSpellCheckingEnabled = NO, isGrammarCheckingEnabled = NO;
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113 |
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114 | if (webViewIsEditable) {
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115 | [webView setPolicyDelegate: policyDelegate];
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116 | [policyDelegate release]; policyDelegate = nil;
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117 | }
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118 |
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119 | NSPoint downPt = [downEvent locationInWindow];
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120 | NSPoint upPt = [e locationInWindow];
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121 | if (abs(downPt.x - upPt.x) > kICHysteresisPixels && abs(downPt.y - upPt.y) > kICHysteresisPixels)
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122 | return;
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123 |
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124 | @try {
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125 | NSPoint viewClickPt = [webView convertPoint: downPt fromView: nil];
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126 | NSDictionary *elementDict = [webView elementAtPoint: viewClickPt];
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127 | ICLog(@"elementDict: %@", elementDict);
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128 |
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129 | if ([elementDict count] == 0)
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130 | return;
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131 |
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132 | elementIsEditable = [[elementDict objectForKey: @"WebElementIsContentEditableKey"] boolValue];
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133 | if (!elementIsEditable) {
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134 | NSAssert(!webViewIsEditable, @"Internal error: uneditable element inside editable WebView");
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135 | [webView setEditable: YES];
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136 |
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137 | // don't want spelling/grammar marks to persist when view is made uneditable again
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138 | if ([webView respondsToSelector: @selector(isContinuousSpellCheckingEnabled)] &&
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139 | (isContinuousSpellCheckingEnabled = [webView isContinuousSpellCheckingEnabled])) {
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140 | if ([webView respondsToSelector: @selector(setContinuousSpellCheckingEnabled:)])
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141 | [webView setContinuousSpellCheckingEnabled: NO];
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142 | else
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143 | isContinuousSpellCheckingEnabled = NO; // don't restore
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144 | }
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145 |
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146 | if ([webView respondsToSelector: @selector(isGrammarCheckingEnabled)] &&
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147 | (isGrammarCheckingEnabled = [webView isGrammarCheckingEnabled])) {
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148 | if ([webView respondsToSelector: @selector(setGrammarCheckingEnabled:)])
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149 | [webView setGrammarCheckingEnabled: NO];
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150 | else
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151 | isGrammarCheckingEnabled = NO; // don't restore
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152 | }
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153 | }
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154 |
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155 | DOMNode *clickedNode = [elementDict objectForKey: @"WebElementDOMNode"];
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156 | BOOL elementIsHTMLInput = ICCF_NodeIs("Input");
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157 |
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158 | if (!elementIsEditable && (elementIsHTMLInput || ICCF_DOMParentIs("Button") || ICCF_NodeIs("FieldSet"))) {
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159 | ICLog(@"got an uneditable form field (e.g., button)");
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160 | return;
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161 | }
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162 |
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163 | id link = [elementDict objectForKey: @"WebElementLinkURL"];
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164 | NSString *url = [link isKindOfClass: [NSURL class]] ? [link absoluteString] : nil;
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165 |
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166 | ICCF_StartIC();
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167 |
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168 | id /* DOMRange */ domRange = nil;
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169 |
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170 | if (url != nil) {
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171 | ICLog(@"got a link");
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172 | if (!elementIsEditable) {
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173 | return;
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174 | }
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175 | // XXX handle existing selection
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176 | domRange = [webView selectedDOMRange];
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177 | [domRange selectNode: clickedNode];
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178 | [webView setSelectedDOMRange: domRange affinity: NSSelectionAffinityDownstream];
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179 | } else {
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180 | if (!elementIsEditable) // may have become deselected in mouseDown
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181 | [webView setSelectedDOMRange: selectedRange affinity: NSSelectionAffinityDownstream];
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182 |
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183 | NSRange range = [ICeCoffEETrigger rangeForEvent: downEvent onTarget: (NSView<NSTextInput> *)self];
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184 | if (range.location == NSNotFound)
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185 | return;
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186 |
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187 | WebFrame *frame = [(WebHTMLView *)self _frame];
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188 | WebCoreFrameBridge *bridge = nil;
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189 | if ([self respondsToSelector: @selector(_bridge)])
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190 | bridge = [(WebHTMLView *)self _bridge];
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191 |
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192 | // XXX limit to a reasonable size
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193 | NSString *s;
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194 | if (elementIsHTMLInput || ICCF_NodeIs("TextArea") || (elementIsEditable && !webViewIsEditable)) {
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195 | // for form fields, range will be field-relative rather than document-relative
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196 | ICLog(@"Using attributedSubstringFromRange:");
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197 | s = [[(NSView<NSTextInput> *)self attributedSubstringFromRange: NSMakeRange(0, UINT_MAX)] string];
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198 | } else { // sometimes attributedSubstringFromRange: returns nil
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199 | ICLog(@"Using stringForRange:");
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200 | domRange = [(WebHTMLView *)self _documentRange];
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201 | if ([frame respondsToSelector: @selector(_stringForRange:)])
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202 | s = [frame _stringForRange: domRange];
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203 | else if (bridge != nil && [bridge respondsToSelector: @selector(stringForRange:)])
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204 | s = [bridge stringForRange: domRange];
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205 | else {
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206 | ICLog(@"WebKit has neither -[WebFrame _stringForRange:] nor -[WebCoreFrameBridge stringForRange:]");
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207 | return; // WebKit too new?
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208 | }
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209 | }
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210 |
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211 | if (bridge == nil && ![frame respondsToSelector: @selector(_convertNSRangeToDOMRange:)]) {
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212 | ICLog(@"WebKit has no bridge and no -[WebFrame _convertNSRangeToDOMRange:]");
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213 | return; // WebKit too new?
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214 | }
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215 |
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216 | if (range.length == 0) {
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217 | range.length = 1;
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218 | range = ICCF_URLEnclosingRange(s, range);
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219 | domRange = bridge ? [bridge convertNSRangeToDOMRange: range] :
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220 | [frame _convertNSRangeToDOMRange: range];
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221 | [webView setSelectedDOMRange: domRange affinity: NSSelectionAffinityDownstream];
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222 | } else {
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223 | domRange = bridge ? [bridge convertNSRangeToDOMRange: range] :
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224 | [frame _convertNSRangeToDOMRange: range];
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225 | }
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226 |
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227 | url = [s substringWithRange: range];
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228 | }
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229 |
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230 | if (ICCF_LaunchURL(url, ICCF_KeyboardAction(downEvent)) && ICCF_prefs.textBlinkEnabled && domRange != nil) {
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231 | NSRect selectionRect = [(WebHTMLView *)self selectionRect];
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232 | for (int i = 0 ; i < ICCF_prefs.textBlinkCount ; i++) {
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233 | [webView setSelectedDOMRange: nil affinity: NSSelectionAffinityDownstream];
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234 | [self setNeedsDisplayInRect: selectionRect];
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235 | [self display];
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236 | usleep(kICBlinkDelayUsecs);
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237 | [webView setSelectedDOMRange: domRange affinity: NSSelectionAffinityDownstream];
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238 | [self setNeedsDisplayInRect: selectionRect];
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239 | [self display];
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240 | usleep(kICBlinkDelayUsecs);
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241 | }
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242 | }
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243 | } @catch (NSException *e) {
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244 | ICCF_HandleException(e, downEvent);
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245 | } @finally {
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246 | [selectedRange release]; selectedRange = nil;
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247 | [downEvent release]; downEvent = nil;
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248 | if (!elementIsEditable && !webViewIsEditable) {
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249 | [webView setEditable: NO];
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250 | if (isContinuousSpellCheckingEnabled)
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251 | [webView setContinuousSpellCheckingEnabled: YES];
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252 | if (isGrammarCheckingEnabled)
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253 | [webView setGrammarCheckingEnabled: YES];
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254 | }
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255 | ICCF_StopIC();
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256 | }
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257 | }
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258 |
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259 | @end
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