Allow pdfium_test to send simple events to each page.
We add the --send-events flag, which causes pdfium_test to look
for a .evt file with the same base name as the .pdf file being
rendered, and to use its contents to drive calls to FORM_*
APIs.
The .evt file syntax is crude, roughly:
# comments
keycode,65
mousedown,right,300,300 # more comments
mouseup,right,300,300
mousemove,300,300
Review URL: https://codereview.chromium.org/1898993002
diff --git a/samples/pdfium_test.cc b/samples/pdfium_test.cc
index 2ca31b0..aa119c9 100644
--- a/samples/pdfium_test.cc
+++ b/samples/pdfium_test.cc
@@ -54,9 +54,11 @@
};
struct Options {
- Options() : show_config(false), output_format(OUTPUT_NONE) {}
+ Options()
+ : show_config(false), send_events(false), output_format(OUTPUT_NONE) {}
bool show_config;
+ bool send_events;
OutputFormat output_format;
std::string scale_factor_as_string;
std::string exe_path;
@@ -338,6 +340,8 @@
const std::string& cur_arg = args[cur_idx];
if (cur_arg == "--show-config") {
options->show_config = true;
+ } else if (cur_arg == "--send-events") {
+ options->send_events = true;
} else if (cur_arg == "--ppm") {
if (options->output_format != OUTPUT_NONE) {
fprintf(stderr, "Duplicate or conflicting --ppm argument\n");
@@ -418,11 +422,73 @@
void Add_Segment(FX_DOWNLOADHINTS* pThis, size_t offset, size_t size) {
}
+void SendPageEvents(const FPDF_FORMHANDLE& form,
+ const FPDF_PAGE& page,
+ const std::string& events) {
+ auto lines = StringSplit(events, '\n');
+ for (auto line : lines) {
+ auto command = StringSplit(line, '#');
+ if (command[0].empty())
+ continue;
+ auto tokens = StringSplit(command[0], ',');
+ if (tokens[0] == "keycode") {
+ if (tokens.size() == 2) {
+ int keycode = atoi(tokens[1].c_str());
+ FORM_OnKeyDown(form, page, keycode, 0);
+ FORM_OnKeyUp(form, page, keycode, 0);
+ } else {
+ fprintf(stderr, "keycode: bad args\n");
+ }
+ } else if (tokens[0] == "mousedown") {
+ if (tokens.size() == 4) {
+ int x = atoi(tokens[2].c_str());
+ int y = atoi(tokens[3].c_str());
+ if (tokens[1] == "left")
+ FORM_OnLButtonDown(form, page, 0, x, y);
+#ifdef PDF_ENABLE_XFA
+ else if (tokens[1] == "right")
+ FORM_OnRButtonDown(form, page, 0, x, y);
+#endif
+ else
+ fprintf(stderr, "mousedown: bad button name\n");
+ } else {
+ fprintf(stderr, "mousedown: bad args\n");
+ }
+ } else if (tokens[0] == "mouseup") {
+ if (tokens.size() == 4) {
+ int x = atoi(tokens[2].c_str());
+ int y = atoi(tokens[3].c_str());
+ if (tokens[1] == "left")
+ FORM_OnLButtonUp(form, page, 0, x, y);
+#ifdef PDF_ENABLE_XFA
+ else if (tokens[1] == "right")
+ FORM_OnRButtonUp(form, page, 0, x, y);
+#endif
+ else
+ fprintf(stderr, "mouseup: bad button name\n");
+ } else {
+ fprintf(stderr, "mouseup: bad args\n");
+ }
+ } else if (tokens[0] == "mousemove") {
+ if (tokens.size() == 3) {
+ int x = atoi(tokens[1].c_str());
+ int y = atoi(tokens[2].c_str());
+ FORM_OnMouseMove(form, page, 0, x, y);
+ } else {
+ fprintf(stderr, "mousemove: bad args\n");
+ }
+ } else {
+ fprintf(stderr, "Unrecognized event: %s\n", tokens[0].c_str());
+ }
+ }
+}
+
bool RenderPage(const std::string& name,
const FPDF_DOCUMENT& doc,
const FPDF_FORMHANDLE& form,
const int page_index,
- const Options& options) {
+ const Options& options,
+ const std::string& events) {
FPDF_PAGE page = FPDF_LoadPage(doc, page_index);
if (!page) {
return false;
@@ -431,6 +497,9 @@
FORM_OnAfterLoadPage(page, form);
FORM_DoPageAAction(page, form, FPDFPAGE_AACTION_OPEN);
+ if (options.send_events)
+ SendPageEvents(doc, form, events);
+
double scale = 1.0;
if (!options.scale_factor_as_string.empty()) {
std::stringstream(options.scale_factor_as_string) >> scale;
@@ -490,8 +559,11 @@
return true;
}
-void RenderPdf(const std::string& name, const char* pBuf, size_t len,
- const Options& options) {
+void RenderPdf(const std::string& name,
+ const char* pBuf,
+ size_t len,
+ const Options& options,
+ const std::string& events) {
fprintf(stderr, "Rendering PDF file %s.\n", name.c_str());
IPDF_JSPLATFORM platform_callbacks;
@@ -623,7 +695,7 @@
return;
}
}
- if (RenderPage(name, doc, form, i, options)) {
+ if (RenderPage(name, doc, form, i, options, events)) {
++rendered_pages;
} else {
++bad_pages;
@@ -744,8 +816,26 @@
size_t file_length = 0;
std::unique_ptr<char, pdfium::FreeDeleter> file_contents =
GetFileContents(filename.c_str(), &file_length);
- if (file_contents)
- RenderPdf(filename, file_contents.get(), file_length, options);
+ if (!file_contents)
+ continue;
+ std::string events;
+ if (options.send_events) {
+ std::string event_filename = filename;
+ size_t event_length = 0;
+ size_t extension_pos = event_filename.find(".pdf");
+ if (extension_pos != std::string::npos) {
+ event_filename.replace(extension_pos, 4, ".evt");
+ std::unique_ptr<char, pdfium::FreeDeleter> event_contents =
+ GetFileContents(event_filename.c_str(), &event_length);
+ if (event_contents) {
+ events = std::string(event_contents.get(), event_length);
+ } else {
+ fprintf(stderr, "Warning: no event file: %s\n",
+ event_filename.c_str());
+ }
+ }
+ }
+ RenderPdf(filename, file_contents.get(), file_length, options, events);
}
FPDF_DestroyLibrary();
