1 // Copyright 2018 The PDFium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "samples/helpers/event.h"
6
7 #include <stdio.h>
8
9 #include <string>
10 #include <vector>
11
12 #include "public/fpdf_fwlevent.h"
13 #include "public/fpdfview.h"
14 #include "testing/fx_string_testhelpers.h"
15
16 namespace {
17
GetModifiers(std::string modifiers_string)18 uint32_t GetModifiers(std::string modifiers_string) {
19 uint32_t modifiers = 0;
20 if (modifiers_string.find("shift") != std::string::npos) {
21 modifiers |= FWL_EVENTFLAG_ShiftKey;
22 }
23 if (modifiers_string.find("control") != std::string::npos) {
24 modifiers |= FWL_EVENTFLAG_ControlKey;
25 }
26 if (modifiers_string.find("alt") != std::string::npos) {
27 modifiers |= FWL_EVENTFLAG_AltKey;
28 }
29
30 return modifiers;
31 }
32
SendCharCodeEvent(FPDF_FORMHANDLE form,FPDF_PAGE page,const std::vector<std::string> & tokens)33 void SendCharCodeEvent(FPDF_FORMHANDLE form,
34 FPDF_PAGE page,
35 const std::vector<std::string>& tokens) {
36 if (tokens.size() != 2) {
37 fprintf(stderr, "charcode: bad args\n");
38 return;
39 }
40
41 int charcode = atoi(tokens[1].c_str());
42 FORM_OnChar(form, page, charcode, 0);
43 }
44
SendKeyCodeEvent(FPDF_FORMHANDLE form,FPDF_PAGE page,const std::vector<std::string> & tokens)45 void SendKeyCodeEvent(FPDF_FORMHANDLE form,
46 FPDF_PAGE page,
47 const std::vector<std::string>& tokens) {
48 if (tokens.size() < 2 || tokens.size() > 3) {
49 fprintf(stderr, "keycode: bad args\n");
50 return;
51 }
52
53 int keycode = atoi(tokens[1].c_str());
54 uint32_t modifiers = tokens.size() >= 3 ? GetModifiers(tokens[2]) : 0;
55 FORM_OnKeyDown(form, page, keycode, modifiers);
56 FORM_OnKeyUp(form, page, keycode, modifiers);
57 }
58
SendMouseDownEvent(FPDF_FORMHANDLE form,FPDF_PAGE page,const std::vector<std::string> & tokens)59 void SendMouseDownEvent(FPDF_FORMHANDLE form,
60 FPDF_PAGE page,
61 const std::vector<std::string>& tokens) {
62 if (tokens.size() < 4 && tokens.size() > 5) {
63 fprintf(stderr, "mousedown: bad args\n");
64 return;
65 }
66
67 int x = atoi(tokens[2].c_str());
68 int y = atoi(tokens[3].c_str());
69 uint32_t modifiers = tokens.size() >= 5 ? GetModifiers(tokens[4]) : 0;
70
71 if (tokens[1] == "left") {
72 FORM_OnLButtonDown(form, page, modifiers, x, y);
73 } else if (tokens[1] == "right") {
74 FORM_OnRButtonDown(form, page, modifiers, x, y);
75 } else {
76 fprintf(stderr, "mousedown: bad button name\n");
77 }
78 }
79
SendMouseUpEvent(FPDF_FORMHANDLE form,FPDF_PAGE page,const std::vector<std::string> & tokens)80 void SendMouseUpEvent(FPDF_FORMHANDLE form,
81 FPDF_PAGE page,
82 const std::vector<std::string>& tokens) {
83 if (tokens.size() < 4 && tokens.size() > 5) {
84 fprintf(stderr, "mouseup: bad args\n");
85 return;
86 }
87
88 int x = atoi(tokens[2].c_str());
89 int y = atoi(tokens[3].c_str());
90 int modifiers = tokens.size() >= 5 ? GetModifiers(tokens[4]) : 0;
91 if (tokens[1] == "left") {
92 FORM_OnLButtonUp(form, page, modifiers, x, y);
93 } else if (tokens[1] == "right") {
94 FORM_OnRButtonUp(form, page, modifiers, x, y);
95 } else {
96 fprintf(stderr, "mouseup: bad button name\n");
97 }
98 }
99
SendMouseDoubleClickEvent(FPDF_FORMHANDLE form,FPDF_PAGE page,const std::vector<std::string> & tokens)100 void SendMouseDoubleClickEvent(FPDF_FORMHANDLE form,
101 FPDF_PAGE page,
102 const std::vector<std::string>& tokens) {
103 if (tokens.size() < 4 && tokens.size() > 5) {
104 fprintf(stderr, "mousedoubleclick: bad args\n");
105 return;
106 }
107
108 int x = atoi(tokens[2].c_str());
109 int y = atoi(tokens[3].c_str());
110 int modifiers = tokens.size() >= 5 ? GetModifiers(tokens[4]) : 0;
111 if (tokens[1] != "left") {
112 fprintf(stderr, "mousedoubleclick: bad button name\n");
113 return;
114 }
115 FORM_OnLButtonDoubleClick(form, page, modifiers, x, y);
116 }
117
SendMouseMoveEvent(FPDF_FORMHANDLE form,FPDF_PAGE page,const std::vector<std::string> & tokens)118 void SendMouseMoveEvent(FPDF_FORMHANDLE form,
119 FPDF_PAGE page,
120 const std::vector<std::string>& tokens) {
121 if (tokens.size() != 3) {
122 fprintf(stderr, "mousemove: bad args\n");
123 return;
124 }
125
126 int x = atoi(tokens[1].c_str());
127 int y = atoi(tokens[2].c_str());
128 FORM_OnMouseMove(form, page, 0, x, y);
129 }
130
SendMouseWheelEvent(FPDF_FORMHANDLE form,FPDF_PAGE page,const std::vector<std::string> & tokens)131 void SendMouseWheelEvent(FPDF_FORMHANDLE form,
132 FPDF_PAGE page,
133 const std::vector<std::string>& tokens) {
134 if (tokens.size() < 5 && tokens.size() > 6) {
135 fprintf(stderr, "mousewheel: bad args\n");
136 return;
137 }
138
139 const FS_POINTF point = {static_cast<float>(atoi(tokens[1].c_str())),
140 static_cast<float>(atoi(tokens[2].c_str()))};
141 int delta_x = atoi(tokens[3].c_str());
142 int delta_y = atoi(tokens[4].c_str());
143 int modifiers = tokens.size() >= 6 ? GetModifiers(tokens[5]) : 0;
144 FORM_OnMouseWheel(form, page, modifiers, &point, delta_x, delta_y);
145 }
146
SendFocusEvent(FPDF_FORMHANDLE form,FPDF_PAGE page,const std::vector<std::string> & tokens)147 void SendFocusEvent(FPDF_FORMHANDLE form,
148 FPDF_PAGE page,
149 const std::vector<std::string>& tokens) {
150 if (tokens.size() != 3) {
151 fprintf(stderr, "focus: bad args\n");
152 return;
153 }
154
155 int x = atoi(tokens[1].c_str());
156 int y = atoi(tokens[2].c_str());
157 FORM_OnFocus(form, page, 0, x, y);
158 }
159
160 } // namespace
161
SendPageEvents(FPDF_FORMHANDLE form,FPDF_PAGE page,const std::string & events,const std::function<void ()> & idler)162 void SendPageEvents(FPDF_FORMHANDLE form,
163 FPDF_PAGE page,
164 const std::string& events,
165 const std::function<void()>& idler) {
166 auto lines = StringSplit(events, '\n');
167 for (const auto& line : lines) {
168 auto command = StringSplit(line, '#');
169 if (command[0].empty()) {
170 continue;
171 }
172 auto tokens = StringSplit(command[0], ',');
173 if (tokens[0] == "charcode") {
174 SendCharCodeEvent(form, page, tokens);
175 } else if (tokens[0] == "keycode") {
176 SendKeyCodeEvent(form, page, tokens);
177 } else if (tokens[0] == "mousedown") {
178 SendMouseDownEvent(form, page, tokens);
179 } else if (tokens[0] == "mouseup") {
180 SendMouseUpEvent(form, page, tokens);
181 } else if (tokens[0] == "mousedoubleclick") {
182 SendMouseDoubleClickEvent(form, page, tokens);
183 } else if (tokens[0] == "mousemove") {
184 SendMouseMoveEvent(form, page, tokens);
185 } else if (tokens[0] == "mousewheel") {
186 SendMouseWheelEvent(form, page, tokens);
187 } else if (tokens[0] == "focus") {
188 SendFocusEvent(form, page, tokens);
189 } else {
190 fprintf(stderr, "Unrecognized event: %s\n", tokens[0].c_str());
191 }
192 idler();
193 }
194 }
195