https://bugs.webkit.org/show_bug.cgi?id=53330
[WebKit-https.git] / Source / WebKit2 / WebProcess / WebPage / qt / WebPageQt.cpp
1 /*
2  * Copyright (C) 2010 Apple Inc. All rights reserved.
3  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
15  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
18  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
19  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
20  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
21  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
22  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
23  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
24  * THE POSSIBILITY OF SUCH DAMAGE.
25  */
26
27 #include "config.h"
28 #include "WebPage.h"
29
30 #include "WebEvent.h"
31 #include <WebCore/FocusController.h>
32 #include <WebCore/Frame.h>
33 #include <WebCore/KeyboardEvent.h>
34 #include <WebCore/Page.h>
35 #include <WebCore/PlatformKeyboardEvent.h>
36 #include <WebCore/Settings.h>
37
38 #ifndef VK_UNKNOWN
39 #define VK_UNKNOWN 0
40 #define VK_BACK 0x08
41 #define VK_TAB 0x09
42 #define VK_CLEAR 0x0C
43 #define VK_RETURN 0x0D
44 #define VK_SHIFT 0x10
45 #define VK_CONTROL 0x11 // CTRL key
46 #define VK_MENU 0x12 // ALT key
47 #define VK_PAUSE 0x13 // PAUSE key
48 #define VK_CAPITAL 0x14 // CAPS LOCK key
49 #define VK_KANA 0x15 // Input Method Editor (IME) Kana mode
50 #define VK_HANGUL 0x15 // IME Hangul mode
51 #define VK_JUNJA 0x17 // IME Junja mode
52 #define VK_FINAL 0x18 // IME final mode
53 #define VK_HANJA 0x19 // IME Hanja mode 
54 #define VK_KANJI 0x19 // IME Kanji mode
55 #define VK_ESCAPE 0x1B // ESC key
56 #define VK_CONVERT 0x1C // IME convert
57 #define VK_NONCONVERT 0x1D // IME nonconvert
58 #define VK_ACCEPT 0x1E // IME accept
59 #define VK_MODECHANGE 0x1F // IME mode change request
60 #define VK_SPACE 0x20 // SPACE key
61 #define VK_PRIOR 0x21 // PAGE UP key
62 #define VK_NEXT 0x22 // PAGE DOWN key
63 #define VK_END 0x23 // END key
64 #define VK_HOME 0x24 // HOME key
65 #define VK_LEFT 0x25 // LEFT ARROW key
66 #define VK_UP 0x26 // UP ARROW key
67 #define VK_RIGHT 0x27 // RIGHT ARROW key
68 #define VK_DOWN 0x28 // DOWN ARROW key
69 #define VK_SELECT 0x29 // SELECT key
70 #define VK_PRINT 0x2A // PRINT key
71 #define VK_EXECUTE 0x2B // EXECUTE key
72 #define VK_SNAPSHOT 0x2C // PRINT SCREEN key
73 #define VK_INSERT 0x2D // INS key
74 #define VK_DELETE 0x2E // DEL key
75 #define VK_HELP 0x2F // HELP key
76 // Windows 2000/XP: For any country/region, the '.' key
77 #define VK_OEM_PERIOD 0xBE
78 #endif
79
80 using namespace WebCore;
81
82 namespace WebKit {
83     
84 void WebPage::platformInitialize()
85 {
86 }
87
88 void WebPage::platformPreferencesDidChange(const WebPreferencesStore&)
89 {
90 }
91
92 static const unsigned CtrlKey = 1 << 0;
93 static const unsigned AltKey = 1 << 1;
94 static const unsigned ShiftKey = 1 << 2;
95
96 struct KeyDownEntry {
97     unsigned virtualKey;
98     unsigned modifiers;
99     const char* name;
100 };
101
102 struct KeyPressEntry {
103     unsigned charCode;
104     unsigned modifiers;
105     const char* name;
106 };
107
108 static const KeyDownEntry keyDownEntries[] = {
109     { VK_LEFT,   0,                  "MoveLeft"                                    },
110     { VK_LEFT,   ShiftKey,           "MoveLeftAndModifySelection"                  },
111     { VK_LEFT,   CtrlKey,            "MoveWordLeft"                                },
112     { VK_LEFT,   CtrlKey | ShiftKey, "MoveWordLeftAndModifySelection"              },
113     { VK_RIGHT,  0,                  "MoveRight"                                   },
114     { VK_RIGHT,  ShiftKey,           "MoveRightAndModifySelection"                 },
115     { VK_RIGHT,  CtrlKey,            "MoveWordRight"                               },
116     { VK_RIGHT,  CtrlKey | ShiftKey, "MoveWordRightAndModifySelection"             },
117     { VK_UP,     0,                  "MoveUp"                                      },
118     { VK_UP,     ShiftKey,           "MoveUpAndModifySelection"                    },
119     { VK_PRIOR,  ShiftKey,           "MovePageUpAndModifySelection"                },
120     { VK_DOWN,   0,                  "MoveDown"                                    },
121     { VK_DOWN,   ShiftKey,           "MoveDownAndModifySelection"                  },
122     { VK_NEXT,   ShiftKey,           "MovePageDownAndModifySelection"              },
123     { VK_PRIOR,  0,                  "MovePageUp"                                  },
124     { VK_NEXT,   0,                  "MovePageDown"                                },
125     { VK_HOME,   0,                  "MoveToBeginningOfLine"                       },
126     { VK_HOME,   ShiftKey,           "MoveToBeginningOfLineAndModifySelection"     },
127     { VK_HOME,   CtrlKey,            "MoveToBeginningOfDocument"                   },
128     { VK_HOME,   CtrlKey | ShiftKey, "MoveToBeginningOfDocumentAndModifySelection" },
129     
130     { VK_END,    0,                  "MoveToEndOfLine"                             },
131     { VK_END,    ShiftKey,           "MoveToEndOfLineAndModifySelection"           },
132     { VK_END,    CtrlKey,            "MoveToEndOfDocument"                         },
133     { VK_END,    CtrlKey | ShiftKey, "MoveToEndOfDocumentAndModifySelection"       },
134     
135     { VK_BACK,   0,                  "DeleteBackward"                              },
136     { VK_BACK,   ShiftKey,           "DeleteBackward"                              },
137     { VK_DELETE, 0,                  "DeleteForward"                               },
138     { VK_BACK,   CtrlKey,            "DeleteWordBackward"                          },
139     { VK_DELETE, CtrlKey,            "DeleteWordForward"                           },
140     
141     { 'B',       CtrlKey,            "ToggleBold"                                  },
142     { 'I',       CtrlKey,            "ToggleItalic"                                },
143     
144     { VK_ESCAPE, 0,                  "Cancel"                                      },
145     { VK_OEM_PERIOD, CtrlKey,        "Cancel"                                      },
146     { VK_TAB,    0,                  "InsertTab"                                   },
147     { VK_TAB,    ShiftKey,           "InsertBacktab"                               },
148     { VK_RETURN, 0,                  "InsertNewline"                               },
149     { VK_RETURN, CtrlKey,            "InsertNewline"                               },
150     { VK_RETURN, AltKey,             "InsertNewline"                               },
151     { VK_RETURN, ShiftKey,           "InsertNewline"                               },
152     { VK_RETURN, AltKey | ShiftKey,  "InsertNewline"                               },
153     
154     // It's not quite clear whether clipboard shortcuts and Undo/Redo should be handled
155     // in the application or in WebKit. We chose WebKit.
156     { 'C',       CtrlKey,            "Copy"                                        },
157     { 'V',       CtrlKey,            "Paste"                                       },
158     { 'X',       CtrlKey,            "Cut"                                         },
159     { 'A',       CtrlKey,            "SelectAll"                                   },
160     { VK_INSERT, CtrlKey,            "Copy"                                        },
161     { VK_DELETE, ShiftKey,           "Cut"                                         },
162     { VK_INSERT, ShiftKey,           "Paste"                                       },
163     { 'Z',       CtrlKey,            "Undo"                                        },
164     { 'Z',       CtrlKey | ShiftKey, "Redo"                                        },
165 };
166
167 static const KeyPressEntry keyPressEntries[] = {
168     { '\t',   0,                  "InsertTab"                                   },
169     { '\t',   ShiftKey,           "InsertBacktab"                               },
170     { '\r',   0,                  "InsertNewline"                               },
171     { '\r',   CtrlKey,            "InsertNewline"                               },
172     { '\r',   AltKey,             "InsertNewline"                               },
173     { '\r',   ShiftKey,           "InsertNewline"                               },
174     { '\r',   AltKey | ShiftKey,  "InsertNewline"                               },
175 };
176
177 const char* WebPage::interpretKeyEvent(const KeyboardEvent* evt)
178 {
179     ASSERT(evt->type() == eventNames().keydownEvent || evt->type() == eventNames().keypressEvent);
180     
181     static HashMap<int, const char*>* keyDownCommandsMap = 0;
182     static HashMap<int, const char*>* keyPressCommandsMap = 0;
183     
184     if (!keyDownCommandsMap) {
185         keyDownCommandsMap = new HashMap<int, const char*>;
186         keyPressCommandsMap = new HashMap<int, const char*>;
187         
188         for (unsigned i = 0; i < (sizeof(keyDownEntries) / sizeof(keyDownEntries[0])); i++)
189             keyDownCommandsMap->set(keyDownEntries[i].modifiers << 16 | keyDownEntries[i].virtualKey, keyDownEntries[i].name);
190         
191         for (unsigned i = 0; i < (sizeof(keyPressEntries) / sizeof(keyPressEntries[0])); i++)
192             keyPressCommandsMap->set(keyPressEntries[i].modifiers << 16 | keyPressEntries[i].charCode, keyPressEntries[i].name);
193     }
194     
195     unsigned modifiers = 0;
196     if (evt->shiftKey())
197         modifiers |= ShiftKey;
198     if (evt->altKey())
199         modifiers |= AltKey;
200     if (evt->ctrlKey())
201         modifiers |= CtrlKey;
202     
203     if (evt->type() == eventNames().keydownEvent) {
204         int mapKey = modifiers << 16 | evt->keyEvent()->windowsVirtualKeyCode();
205         return mapKey ? keyDownCommandsMap->get(mapKey) : 0;
206     }
207     
208     int mapKey = modifiers << 16 | evt->charCode();
209     return mapKey ? keyPressCommandsMap->get(mapKey) : 0;
210 }
211
212 static inline void scroll(Page* page, ScrollDirection direction, ScrollGranularity granularity)
213 {
214     page->focusController()->focusedOrMainFrame()->eventHandler()->scrollRecursively(direction, granularity);
215 }
216
217 static inline void logicalScroll(Page* page, ScrollLogicalDirection direction, ScrollGranularity granularity)
218 {
219     page->focusController()->focusedOrMainFrame()->eventHandler()->logicalScrollRecursively(direction, granularity);
220 }
221
222 bool WebPage::performDefaultBehaviorForKeyEvent(const WebKeyboardEvent& keyboardEvent)
223 {
224     if (keyboardEvent.type() != WebEvent::KeyDown && keyboardEvent.type() != WebEvent::RawKeyDown)
225         return false;
226
227     switch (keyboardEvent.windowsVirtualKeyCode()) {
228     case VK_BACK:
229         if (keyboardEvent.shiftKey())
230             m_page->goForward();
231         else
232             m_page->goBack();
233         break;
234     case VK_SPACE:
235         logicalScroll(m_page.get(), keyboardEvent.shiftKey() ? ScrollBlockDirectionBackward : ScrollBlockDirectionForward, ScrollByPage);
236         break;
237     case VK_LEFT:
238         scroll(m_page.get(), ScrollLeft, ScrollByLine);
239         break;
240     case VK_RIGHT:
241         scroll(m_page.get(), ScrollRight, ScrollByLine);
242         break;
243     case VK_UP:
244         scroll(m_page.get(), ScrollUp, ScrollByLine);
245         break;
246     case VK_DOWN:
247         scroll(m_page.get(), ScrollDown, ScrollByLine);
248         break;
249     case VK_HOME:
250         logicalScroll(m_page.get(), ScrollBlockDirectionBackward, ScrollByDocument);
251         break;
252     case VK_END:
253         logicalScroll(m_page.get(), ScrollBlockDirectionForward, ScrollByDocument);
254         break;
255     case VK_PRIOR:
256         logicalScroll(m_page.get(), ScrollBlockDirectionBackward, ScrollByPage);
257         break;
258     case VK_NEXT:
259         logicalScroll(m_page.get(), ScrollBlockDirectionForward, ScrollByPage);
260         break;
261     default:
262         return false;
263     }
264
265     return true;
266 }
267
268 bool WebPage::platformHasLocalDataForURL(const WebCore::KURL&)
269 {
270     // FIXME: Implement
271     return false;
272 }
273
274 String WebPage::cachedResponseMIMETypeForURL(const WebCore::KURL&)
275 {
276     // FIXME: Implement
277     return String();
278 }
279
280 bool WebPage::canHandleRequest(const WebCore::ResourceRequest&)
281 {
282     // FIXME: Implement
283     return true;
284 }
285
286 } // namespace WebKit