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GIODevice: Add a read_all() that returns a ByteBuffer with all we can read.

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Use this to implement file opening in TextEditor.
This commit is contained in:
Andreas Kling 2019-03-18 14:38:30 +01:00
parent 8e3d0a23d5
commit 9ad076178a
6 changed files with 58 additions and 25 deletions
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29
Applications/TextEditor/main.cpp
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@ -8,6 +8,7 @@
#include <LibGUI/GTextEditor.h>
#include <LibGUI/GAction.h>
#include <LibGUI/GFontDatabase.h>
#include <LibGUI/GFile.h>
#include <AK/StringBuilder.h>
#include <unistd.h>
#include <stdio.h>
@ -34,31 +35,13 @@ int main(int argc, char** argv)
String path = "/tmp/TextEditor.save.txt";
if (argc >= 2) {
path = argv[1];
StringBuilder builder;
int fd = open(path.characters(), O_RDONLY);
if (fd < 0) {
perror("open");
GFile file(path);
if (!file.open(GIODevice::ReadOnly)) {
fprintf(stderr, "Opening %s: %s\n", path.characters(), file.error_string());
return 1;
}
for (;;) {
char buffer[BUFSIZ];
ssize_t nread = read(fd, buffer, sizeof(buffer));
if (nread < 0) {
perror("read");
return 1;
}
if (nread == 0)
break;
builder.append(buffer, nread);
}
int rc = close(fd);
if (rc < 0) {
perror("close");
return 1;
}
text_editor->set_text(builder.to_string());
text_editor->set_text(String::from_byte_buffer(file.read_all()));
}
auto new_action = GAction::create("New document", { Mod_Ctrl, Key_N }, GraphicsBitmap::load_from_file(GraphicsBitmap::Format::RGBA32, "/res/icons/16x16/new.rgb", { 16, 16 }), [] (const GAction&) {